International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
This document summarizes a time series analysis of air pollution data from Richmond, Virginia conducted using R. The analysis examined particulate matter (PM2.5 and PM10), lead, carbon monoxide, and ozone over 2010-2013. Correlation between pollutants was low. Univariate time series models like ARIMA were fitted to each pollutant and compared to 2013 data. ARIMA predicted PM2.5 and lead levels accurately but not other pollutants. The analysis aimed to apply methods from a Bulgarian air pollution study to a US city.
Urbanization and population growth negatively impact air quality. This study used spatial interpolation techniques in a GIS to estimate the temporal and spatial variation of air pollution levels over Mumbai, India. Air pollution data on sulfur dioxide, nitrogen dioxide, and suspended particulate matter was collected from three monitoring organizations and interpolated using inverse distance weighting, kriging spherical, and kriging Gaussian methods. The results showed that winter had the highest pollution concentrations due to lower temperatures and wind. Kriging spherical and Gaussian techniques best matched the observed data. The study concluded kriging performed best for interpolation and can help evaluate the health impacts of air pollution.
Urban Air Quality Modelling and Simulation: A Case Study of Kolhapur (M.S.), ...IDES Editor
As a consequence of urbanization a phenomenal
surge has been observed in the vehicular population in India,
giving rise to elevated levels of traffic related pollutants like
carbon monoxide, nitrogen oxides, hydrocarbons, and
particulates in Indian urban centers. These pollutants can
have both acute and chronic effects on human health. Thus
air quality management needs immediate attention. Air
quality models simulate the physical and chemical processes
occurring in the atmosphere to estimate the atmospheric
pollutant concentration. A variety of air quality models are
available ranging from simple empirical models to complex
Computational Fluid Dynamic (CFD) models. Air quality
models can be a valuable tool in pollution forecasting, air
quality management, traffic management and urban planning.
This paper evaluates the performance of widely used Danish
Operational Street Pollution Model (OSPM) under Indian
traffic conditions. Comparison between predicted and observed
concentrations was performed using both quantitative and
statistical methods. OSPM was found to perform exceedingly
well for the prediction of particulates whereas NO2 predictions
were poorly predicted.
Air pollution Assessment (GIS,RS Approach)Ehsan Hamzei
This document summarizes several studies that used remote sensing (RS) and geographic information systems (GIS) to assess air pollution. It describes studies that used RS data from MODIS, Landsat, and other satellites combined with ground measurements to analyze correlations between land use, thermal patterns, and air pollution levels in various cities around the world. The document also provides an overview of the Terra, Aqua, and ERS-2 satellites and their instruments that have been used to monitor air pollutants like carbon monoxide, sulfur dioxide, and aerosols from space.
ONLINE SCALABLE SVM ENSEMBLE LEARNING METHOD (OSSELM) FOR SPATIO-TEMPORAL AIR...IJDKP
Environmental air pollution studies fail to consider the fact that air pollution is a spatio-temporal problem. The volume and complexity of the data have created the need to explore various machine learning models, however, those models have advantages and disadvantages when applied to regional air pollution analysis, furthermore, most environmental problems are global distribution problems. This research addressed spatio-temporal problem using decentralized computational technique named Online Scalable SVM Ensemble Learning Method (OSSELM). Evaluation criteria for computational air pollution analysis includes: accuracy, real time & prediction, spatio-temporal and decentralised analysis, we assert that these criteria can be improved using the proposed OSSELM. Special consideration is given to distributed ensemble to resolve spatio-temporal data collection problem (i.e. the data collected from multiple monitoring stations dispersed over a geographical location). Moreover, the experimental results demonstrated that the proposed OSSELM produced impressive results compare to SVM ensemble for air pollution analysis in Auckland region.
Computer model simulations are widely used in the investigation of complex hydrological systems. In particular, hydrological models are tools that help both to better understand hydrological processes and to predict extreme events such as floods and droughts. Usually, model parameters need to be estimated through calibration, in order to constrain model outputs to observed variables.
Relevant model parameters used for calibration are usually selected based on expert knowledge of the modeller or by using a local one-at-a-time (OAT) sensitivity analysis (SA). However, in case of complex models those approaches may not result in proper identification of the most sensitive parameters for model calibration. In particular local OAT SA methods are only effective for assessing the relative importance of input factors when the model is linear, monotonic, and additive, which is rarely the case for complex environmental models. In contrast Global Sensitivity Analysis (GSA)
is a formal method for statistical evaluation of relevant parameters that contribute significantly to model performance. GSA techniques explore the entire feasible space of each model parameter, and they do not require any assumptions on the model nature (such as linearity or additivity).
In this work we apply the GSA to LISFLOOD, a fully-distributed hydrological model used for flood forecasting at Pan-European scale within the European Flood Awareness System (EFAS). Two case studies are considered, snowmelt- and evapotranspiration-driven catchments, to identify sensitive parameters for both types of hydrological regimes. Results of the GSA will then be used for selecting parameters that need to be estimated during model calibration. Considering the large
number of parameters of a fully-distributed model, a two-step GSA framework is applied. First, we implement the computationally efficient screening method of Morris. This method requires a limited number of simulations and produces a qualitative ranking and selection of important factors. As a second step, we apply the variance-based method of Sobol, only to the subset of factors determined as important during the previous screening. The method of Sobol provides quantitative estimates for first order and total order sensitivity indexes of input factors.
The calibration results after the GSA will be described for both case studies and compared against those obtained by using only prior expert knowledge
Improved grey clustering method in risk zonation of mountain flash flood disa...Agriculture Journal IJOEAR
— Flash floods are considered one of the worst weather-related natural disasters. Flash floods are dangerous because they are sudden and highly unpredictable. Identification of the locations of high-risk areas has a major effect on the improvement of flash flood disaster control and prevention. Earlier work conducted on flood disaster risk zonation was commonly based on Digital Elevation Mode (DEM) data and statistical yearbook data and used an index, such as rainfall, topography, slope, or river distribution, with the analytic hierarchy process (AHP) method to determine the weighting. In this method, the final regional risk map was created by using ArcGIS map algebra superposition. In the present study, an improved gray clustering method is put forward to improve the comprehensive evaluation of the risk of mountain flash flood disasters by constructing the exponential whitening function and by using the information entropy weight method, which produces results that are more accurate and more reliable than those of the traditional method. This improved method can make full use of the limited information available, improving not only the resolution but also the influence of the subjective method, and produces more objective and accurate evaluation results. We obtain the risk degree by combining the information entropy weight and improved whitening function approaches in a gray clustering methodology. Additionally, a method is applied to develop models for mapping the risk grade in zones of 1436 towns and counties in Hubei Province with remotely sensed (RS) data and the ArcGIS platform. The results show that the improved approach is useful for rapidly assessing flash flood hazard and vulnerability and for completing risk assessments in mountain areas.
This document describes a study that used multi-criteria decision analysis (MCDA) to select suitable sites for nuclear power plants in Egypt. Six constraints and twenty-two factors related to safety, environment, and socioeconomics were considered. Three MCDA models were applied: 1) binary overlay to identify candidate areas by eliminating constrained lands, 2) weighted linear combination to produce potential site maps based on factor weights, and 3) analytic hierarchy process to rank four candidate sites on the northwest and Red Sea coasts. The study found El Dabaa site to be most suitable followed by East El Negila site.
This document summarizes a time series analysis of air pollution data from Richmond, Virginia conducted using R. The analysis examined particulate matter (PM2.5 and PM10), lead, carbon monoxide, and ozone over 2010-2013. Correlation between pollutants was low. Univariate time series models like ARIMA were fitted to each pollutant and compared to 2013 data. ARIMA predicted PM2.5 and lead levels accurately but not other pollutants. The analysis aimed to apply methods from a Bulgarian air pollution study to a US city.
Urbanization and population growth negatively impact air quality. This study used spatial interpolation techniques in a GIS to estimate the temporal and spatial variation of air pollution levels over Mumbai, India. Air pollution data on sulfur dioxide, nitrogen dioxide, and suspended particulate matter was collected from three monitoring organizations and interpolated using inverse distance weighting, kriging spherical, and kriging Gaussian methods. The results showed that winter had the highest pollution concentrations due to lower temperatures and wind. Kriging spherical and Gaussian techniques best matched the observed data. The study concluded kriging performed best for interpolation and can help evaluate the health impacts of air pollution.
Urban Air Quality Modelling and Simulation: A Case Study of Kolhapur (M.S.), ...IDES Editor
As a consequence of urbanization a phenomenal
surge has been observed in the vehicular population in India,
giving rise to elevated levels of traffic related pollutants like
carbon monoxide, nitrogen oxides, hydrocarbons, and
particulates in Indian urban centers. These pollutants can
have both acute and chronic effects on human health. Thus
air quality management needs immediate attention. Air
quality models simulate the physical and chemical processes
occurring in the atmosphere to estimate the atmospheric
pollutant concentration. A variety of air quality models are
available ranging from simple empirical models to complex
Computational Fluid Dynamic (CFD) models. Air quality
models can be a valuable tool in pollution forecasting, air
quality management, traffic management and urban planning.
This paper evaluates the performance of widely used Danish
Operational Street Pollution Model (OSPM) under Indian
traffic conditions. Comparison between predicted and observed
concentrations was performed using both quantitative and
statistical methods. OSPM was found to perform exceedingly
well for the prediction of particulates whereas NO2 predictions
were poorly predicted.
Air pollution Assessment (GIS,RS Approach)Ehsan Hamzei
This document summarizes several studies that used remote sensing (RS) and geographic information systems (GIS) to assess air pollution. It describes studies that used RS data from MODIS, Landsat, and other satellites combined with ground measurements to analyze correlations between land use, thermal patterns, and air pollution levels in various cities around the world. The document also provides an overview of the Terra, Aqua, and ERS-2 satellites and their instruments that have been used to monitor air pollutants like carbon monoxide, sulfur dioxide, and aerosols from space.
ONLINE SCALABLE SVM ENSEMBLE LEARNING METHOD (OSSELM) FOR SPATIO-TEMPORAL AIR...IJDKP
Environmental air pollution studies fail to consider the fact that air pollution is a spatio-temporal problem. The volume and complexity of the data have created the need to explore various machine learning models, however, those models have advantages and disadvantages when applied to regional air pollution analysis, furthermore, most environmental problems are global distribution problems. This research addressed spatio-temporal problem using decentralized computational technique named Online Scalable SVM Ensemble Learning Method (OSSELM). Evaluation criteria for computational air pollution analysis includes: accuracy, real time & prediction, spatio-temporal and decentralised analysis, we assert that these criteria can be improved using the proposed OSSELM. Special consideration is given to distributed ensemble to resolve spatio-temporal data collection problem (i.e. the data collected from multiple monitoring stations dispersed over a geographical location). Moreover, the experimental results demonstrated that the proposed OSSELM produced impressive results compare to SVM ensemble for air pollution analysis in Auckland region.
Computer model simulations are widely used in the investigation of complex hydrological systems. In particular, hydrological models are tools that help both to better understand hydrological processes and to predict extreme events such as floods and droughts. Usually, model parameters need to be estimated through calibration, in order to constrain model outputs to observed variables.
Relevant model parameters used for calibration are usually selected based on expert knowledge of the modeller or by using a local one-at-a-time (OAT) sensitivity analysis (SA). However, in case of complex models those approaches may not result in proper identification of the most sensitive parameters for model calibration. In particular local OAT SA methods are only effective for assessing the relative importance of input factors when the model is linear, monotonic, and additive, which is rarely the case for complex environmental models. In contrast Global Sensitivity Analysis (GSA)
is a formal method for statistical evaluation of relevant parameters that contribute significantly to model performance. GSA techniques explore the entire feasible space of each model parameter, and they do not require any assumptions on the model nature (such as linearity or additivity).
In this work we apply the GSA to LISFLOOD, a fully-distributed hydrological model used for flood forecasting at Pan-European scale within the European Flood Awareness System (EFAS). Two case studies are considered, snowmelt- and evapotranspiration-driven catchments, to identify sensitive parameters for both types of hydrological regimes. Results of the GSA will then be used for selecting parameters that need to be estimated during model calibration. Considering the large
number of parameters of a fully-distributed model, a two-step GSA framework is applied. First, we implement the computationally efficient screening method of Morris. This method requires a limited number of simulations and produces a qualitative ranking and selection of important factors. As a second step, we apply the variance-based method of Sobol, only to the subset of factors determined as important during the previous screening. The method of Sobol provides quantitative estimates for first order and total order sensitivity indexes of input factors.
The calibration results after the GSA will be described for both case studies and compared against those obtained by using only prior expert knowledge
Improved grey clustering method in risk zonation of mountain flash flood disa...Agriculture Journal IJOEAR
— Flash floods are considered one of the worst weather-related natural disasters. Flash floods are dangerous because they are sudden and highly unpredictable. Identification of the locations of high-risk areas has a major effect on the improvement of flash flood disaster control and prevention. Earlier work conducted on flood disaster risk zonation was commonly based on Digital Elevation Mode (DEM) data and statistical yearbook data and used an index, such as rainfall, topography, slope, or river distribution, with the analytic hierarchy process (AHP) method to determine the weighting. In this method, the final regional risk map was created by using ArcGIS map algebra superposition. In the present study, an improved gray clustering method is put forward to improve the comprehensive evaluation of the risk of mountain flash flood disasters by constructing the exponential whitening function and by using the information entropy weight method, which produces results that are more accurate and more reliable than those of the traditional method. This improved method can make full use of the limited information available, improving not only the resolution but also the influence of the subjective method, and produces more objective and accurate evaluation results. We obtain the risk degree by combining the information entropy weight and improved whitening function approaches in a gray clustering methodology. Additionally, a method is applied to develop models for mapping the risk grade in zones of 1436 towns and counties in Hubei Province with remotely sensed (RS) data and the ArcGIS platform. The results show that the improved approach is useful for rapidly assessing flash flood hazard and vulnerability and for completing risk assessments in mountain areas.
This document describes a study that used multi-criteria decision analysis (MCDA) to select suitable sites for nuclear power plants in Egypt. Six constraints and twenty-two factors related to safety, environment, and socioeconomics were considered. Three MCDA models were applied: 1) binary overlay to identify candidate areas by eliminating constrained lands, 2) weighted linear combination to produce potential site maps based on factor weights, and 3) analytic hierarchy process to rank four candidate sites on the northwest and Red Sea coasts. The study found El Dabaa site to be most suitable followed by East El Negila site.
The document describes a study that aimed to explore factors contributing to ultrafine particle (UFP) variability near open-air restaurant patios. UFP concentrations were measured at 8 sites over 20 days using a condensation particle counter. Meteorological data was also collected. Statistical analysis using linear mixed models found that meteorological and traffic effects were the most important predictors of UFP levels. Higher concentrations were observed at measurement sites compared to average levels. The study provides information on the methodology used for site selection, data collection, processing, and statistical analysis to determine the key influences on UFP variability near restaurant patios.
Mapping urban air pollution using gis a regression based approachAnandhi Ramachandran
This document describes a regression-based methodology developed as part of the SAVIAH project to map traffic-related air pollution, specifically NO2, within a GIS environment in three cities. Monitoring of NO2 was conducted using passive diffusion tubes over four periods. A GIS was created containing pollution, road, traffic, land use and other data. Regression equations were constructed using 80 monitoring sites to predict pollution across study areas. Map accuracy was assessed by comparing predictions to independent monitoring sites, showing good prediction (r2 = 0.79-0.87). Further monitoring found maps provided reliable estimates the following year (r2 = 0.59-0.86).
This document presents two methods for quantifying uncertainties in national estimates of living biomass derived from sample surveys like National Forest Inventories: an analytic approach and a parametric bootstrap approach. The analytic approach estimates the total variance of biomass estimates as the sum of the sampling variance and model variance. The model variance accounts for uncertainties in model parameter estimates and residuals. The parametric bootstrap approach simulates biomass estimates under different model parameter values and residuals to estimate total variance. Both methods are compared using data from the Norwegian National Forest Inventory to quantify the contribution of model-related variability to uncertainties in biomass stock and change estimates.
Comparison of Different Evapotranspiration Estimation Techniques for Mohanpur...ijceronline
The accurate estimation of reference evapotranspiration (ETo) plays a pivotal role in water resources planning and management studies. The present study was attempted to estimate the reference evapotranspiration (ETo) using three temperature based methods namely, Blaney-Criddle method, Thornthwaite method and Hargreaves-Samani model and three radiation based methods namely, Turc method, Priestly-Taylor model, and FAO - 24 Radiation Model for Mohanpur area, Nadia district, West Bengal. ET estimates of the above mentioned methods were then compared with FAO Penman - Monteith (FAO-56 PM) method, which was considered as the standard method of ETo estimation, to check the capabilities of different models to predict ETo for the study area. The present analysis was carried out using 10-years daily weather data of Mohanpur weather station. The results of the study revealed that, the ETo values at Mohanpur, Nadia district, West Bengal, India were in the range of 3.5 mm/day to 5.0 mm/day. A rank was assigned to different methods based on the comparative analysis of different ETo estimation methods with FAO-56 PM method and it could be inferred that Turc method as the closest method and Thornthwaite method as the least-matched method to FAO 56 Penman-Monteith for the study area
This study uses atmospheric measurements to estimate methane emissions from an oil and gas production field in Uintah County, Utah. The researchers calculate a methane emission rate of 55±15x103 kg/hr, equivalent to 6.2-11.7% of average natural gas production in the county for that month. This demonstrates the value of the mass balance technique for independently assessing methane emissions from oil and gas regions. The single-day estimate also illustrates the need for more atmospheric measurements to better understand inventory estimates and the variability of emissions over time.
Time Series Data Analysis for Forecasting – A Literature ReviewIJMER
This document summarizes literature on using statistical and data mining techniques for time series forecasting, with a focus on weather prediction. Section 2 discusses various statistical techniques used in literature such as ARIMA models, exponential smoothing models, and spectral analysis methods for time series rainfall and weather forecasting. Section 3 discusses data mining techniques used for time series forecasting, including neural networks and evolutionary computation methods. Several studies applying neural networks to weather prediction are summarized.
This document discusses a study analyzing the impact of climate change on precipitation characteristics in Guwahati, India using an Earth System Model. It summarizes the use of statistical downscaling with multiple linear regression to project future precipitation data. Predictors with the highest correlation to total monthly precipitation, maximum monthly precipitation, and number of dry days were selected from the ESM dataset. The downscaled results will be used for flood frequency analysis to project precipitation levels and dry days under different return periods.
Paschalis, A., Molnar, P., Fatichi, S. y Burlando, P. (2013). Un modelo estoc...SandroSnchezZamora
This document presents a new stochastic space-time model called STREAP for simulating high-resolution precipitation fields. STREAP is a three-stage hierarchical model that mimics the precipitation formation process. The first stage simulates storm arrival as an alternating renewal process. The second stage models the temporal evolution of mean areal precipitation intensity and wet area using a bivariate Gaussian process. The third stage simulates the two-dimensional storm structure over time as a random field. STREAP was applied to weather radar data in Switzerland and was able to reproduce important statistical features of precipitation across spatial and temporal scales. It performed better than an existing space-time point process model in describing spatial precipitation patterns.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
This document discusses different approaches to vehicle emission modeling, including emission inventory models, dispersion modeling, and receptor modeling. It provides details on some commonly used models, including CORINAIR and IPIECA toolkit for emission inventory, ISCST3 and Calpuff for dispersion modeling, and Chemical Mass Balance (CMB) for receptor modeling. The goal of these different approaches is to estimate pollutant loads from vehicles and predict their impact on ambient air quality.
This document discusses different approaches to vehicle emission modeling, including emission inventory models, dispersion modeling, and receptor modeling. It provides details on some commonly used models, including CORINAIR and IPIECA toolkit for emission inventory, ISCST3 and Calpuff for dispersion modeling, and Chemical Mass Balance (CMB) for receptor modeling. The goal of these different approaches is to estimate pollutant loads from vehicles and predict their impact on ambient air quality.
On March 11, 2016, ICLR held a Friday Forum workshop entitled 'Mapping extreme rainfall statistics for Canada', led by Dr. Slobodan Simonovic of Western University.
Climate change is expected to increase the frequency and intensity of extreme rainfall events, affecting rainfall intensity-duration-frequency (IDF) curve information used in the design, maintenance and operation of water infrastructure in Canada. Presented in this lecture are analyses of precipitation data from 567 Environment Canada hydro-meteorological stations using the IDF_CC tool. Results for the year 2100 based on Canadian climate model and an ensemble of 22 GCMs have been generated. A spatial interpolation method was used to produce Canadian precipitation maps for events of various return periods. Results based on the Canadian climate model indicate a reduction in extreme precipitation in central regions of Canada and increases in other regions. Relative to the ensemble approach, the Canadian climate model results (a) suggest more spatial variability in change of IDFs, and (b) the ensemble approach generated generally lower values than the Canadian climate model.
Dr. Simonovic has extensive research, teaching and consulting experience in water resources systems engineering. He teaches courses in water resources and civil engineering systems. He actively works for national and international professional organizations. Dr. Simonovic’s primary research interest focuses on the application of systems approach to management of complex water and environmental systems. Most of his work is related to the integration of risk, reliability, and uncertainty in hydrology and water resources management. He has received a number of awards for excellence in teaching, research and outreach. He has published over 450 professional publications and three major textbooks. He was inducted to the Canadian Academy of Engineering in June of 2013.
Temporal trends of spatial correlation within the PM10 time series of the Air...Florencia Parravicini
We analyse the temporal variations which can be observed within time series of variogram parameters (nugget, sill and range) of daily air quality data (PM10) over a ten years time frame.
International Journal of Computational Engineering Research(IJCER)ijceronline
This document describes the development of Intensity-Duration-Frequency (IDF) relationships for rainfall in Abha City, Saudi Arabia. The author analyzed 34 years of rainfall data from an Abha station to generate IDF curves using three statistical distributions - Gumbel, Log normal, and Log Pearson Type III. IDF curves were developed for eight durations from 10 to 720 minutes and six return periods from 2 to 100 years. Equations to calculate rainfall intensity based on duration and return period were derived for Abha using the three statistical techniques. The results from the techniques showed good agreement. The document also provides background on IDF relationships and reviews several previous related studies conducted in other regions.
Many studies have shown that the increased atmospheric concentration of pollutants has an intensified health risk on lung-, heart- and cardiovascular disease sufferers, as well as the increasing willingness of morbidity and mortality. Therefore, the monitoring of the air pollutants is particularly important. The goal of the recent study was to show a complex picture about Veszprém county’s air quality situation and to discover the relationships between the selected air pollutants (PM10, CO, NO2, SO2, O3) concentration and the picked health diseases (cardiovascular diseases, respiratory diseases, gastrointestinal disorders, ischemic heart disease, cerebrovascular disease, and chronic lower respiratory diseases). Ambient air pollution and hospital admission data for the research were obtained for 2005–2013. According to the calculations; it was found that there was a moderate relation between the air pollutants concentrations and the health diseases.
Simulating the dispersion of traffic emissions at the microscaleIES / IAQM
The MAGIC project aims to develop integrated models to simulate urban air quality and energy consumption at microscales. It uses computational fluid dynamics (CFD) software and data assimilation to model pollutant dispersion from traffic emissions. Field, wind tunnel and laboratory experiments are used to validate the models. Exposure analyses show highly variable pollutant concentrations at microscales. Momentary peak exposures of seconds to minutes may impact total exposure, but their health effects are unclear. Ultra-fast measurements of nitrogen oxides show concentration spikes corresponding to vehicles. CFD simulations of a crossroads reproduce observed hotspots at junctions from queuing traffic. Tracking vehicle movements through simulations could help identify scenarios leading to acute exposures that need mitigation.
This document summarizes the key parts of an abstract for a research paper. It outlines that an abstract typically includes the study area, objectives, methodology, results, conclusions, and recommendations. It then provides an example abstract that applied two techniques, the weighted overlay method and boolean logic, to determine the best locations for artificial groundwater recharge in Sadat City, Egypt. The results showed the northern part of the city was best suited. It concludes by recommending both methods can be useful depending on needs, with the weighted overlay method providing more flexible results.
Tarımsal Toprak Haritalama'da Jeofizik MühendisliğiAli Osman Öncel
1) The document discusses a study evaluating the reliability and reproducibility of electromagnetic induction (EMI) data collection.
2) The study compared data from two identical EMI instruments, the calibration methods of different individuals, and variations in calibration height.
3) The results showed significant differences between instruments, calibrations, and heights. This demonstrates the need for standardization of EMI data collection procedures to ensure reliable and reproducible data.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
The document describes a study that aimed to explore factors contributing to ultrafine particle (UFP) variability near open-air restaurant patios. UFP concentrations were measured at 8 sites over 20 days using a condensation particle counter. Meteorological data was also collected. Statistical analysis using linear mixed models found that meteorological and traffic effects were the most important predictors of UFP levels. Higher concentrations were observed at measurement sites compared to average levels. The study provides information on the methodology used for site selection, data collection, processing, and statistical analysis to determine the key influences on UFP variability near restaurant patios.
Mapping urban air pollution using gis a regression based approachAnandhi Ramachandran
This document describes a regression-based methodology developed as part of the SAVIAH project to map traffic-related air pollution, specifically NO2, within a GIS environment in three cities. Monitoring of NO2 was conducted using passive diffusion tubes over four periods. A GIS was created containing pollution, road, traffic, land use and other data. Regression equations were constructed using 80 monitoring sites to predict pollution across study areas. Map accuracy was assessed by comparing predictions to independent monitoring sites, showing good prediction (r2 = 0.79-0.87). Further monitoring found maps provided reliable estimates the following year (r2 = 0.59-0.86).
This document presents two methods for quantifying uncertainties in national estimates of living biomass derived from sample surveys like National Forest Inventories: an analytic approach and a parametric bootstrap approach. The analytic approach estimates the total variance of biomass estimates as the sum of the sampling variance and model variance. The model variance accounts for uncertainties in model parameter estimates and residuals. The parametric bootstrap approach simulates biomass estimates under different model parameter values and residuals to estimate total variance. Both methods are compared using data from the Norwegian National Forest Inventory to quantify the contribution of model-related variability to uncertainties in biomass stock and change estimates.
Comparison of Different Evapotranspiration Estimation Techniques for Mohanpur...ijceronline
The accurate estimation of reference evapotranspiration (ETo) plays a pivotal role in water resources planning and management studies. The present study was attempted to estimate the reference evapotranspiration (ETo) using three temperature based methods namely, Blaney-Criddle method, Thornthwaite method and Hargreaves-Samani model and three radiation based methods namely, Turc method, Priestly-Taylor model, and FAO - 24 Radiation Model for Mohanpur area, Nadia district, West Bengal. ET estimates of the above mentioned methods were then compared with FAO Penman - Monteith (FAO-56 PM) method, which was considered as the standard method of ETo estimation, to check the capabilities of different models to predict ETo for the study area. The present analysis was carried out using 10-years daily weather data of Mohanpur weather station. The results of the study revealed that, the ETo values at Mohanpur, Nadia district, West Bengal, India were in the range of 3.5 mm/day to 5.0 mm/day. A rank was assigned to different methods based on the comparative analysis of different ETo estimation methods with FAO-56 PM method and it could be inferred that Turc method as the closest method and Thornthwaite method as the least-matched method to FAO 56 Penman-Monteith for the study area
This study uses atmospheric measurements to estimate methane emissions from an oil and gas production field in Uintah County, Utah. The researchers calculate a methane emission rate of 55±15x103 kg/hr, equivalent to 6.2-11.7% of average natural gas production in the county for that month. This demonstrates the value of the mass balance technique for independently assessing methane emissions from oil and gas regions. The single-day estimate also illustrates the need for more atmospheric measurements to better understand inventory estimates and the variability of emissions over time.
Time Series Data Analysis for Forecasting – A Literature ReviewIJMER
This document summarizes literature on using statistical and data mining techniques for time series forecasting, with a focus on weather prediction. Section 2 discusses various statistical techniques used in literature such as ARIMA models, exponential smoothing models, and spectral analysis methods for time series rainfall and weather forecasting. Section 3 discusses data mining techniques used for time series forecasting, including neural networks and evolutionary computation methods. Several studies applying neural networks to weather prediction are summarized.
This document discusses a study analyzing the impact of climate change on precipitation characteristics in Guwahati, India using an Earth System Model. It summarizes the use of statistical downscaling with multiple linear regression to project future precipitation data. Predictors with the highest correlation to total monthly precipitation, maximum monthly precipitation, and number of dry days were selected from the ESM dataset. The downscaled results will be used for flood frequency analysis to project precipitation levels and dry days under different return periods.
Paschalis, A., Molnar, P., Fatichi, S. y Burlando, P. (2013). Un modelo estoc...SandroSnchezZamora
This document presents a new stochastic space-time model called STREAP for simulating high-resolution precipitation fields. STREAP is a three-stage hierarchical model that mimics the precipitation formation process. The first stage simulates storm arrival as an alternating renewal process. The second stage models the temporal evolution of mean areal precipitation intensity and wet area using a bivariate Gaussian process. The third stage simulates the two-dimensional storm structure over time as a random field. STREAP was applied to weather radar data in Switzerland and was able to reproduce important statistical features of precipitation across spatial and temporal scales. It performed better than an existing space-time point process model in describing spatial precipitation patterns.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
This document discusses different approaches to vehicle emission modeling, including emission inventory models, dispersion modeling, and receptor modeling. It provides details on some commonly used models, including CORINAIR and IPIECA toolkit for emission inventory, ISCST3 and Calpuff for dispersion modeling, and Chemical Mass Balance (CMB) for receptor modeling. The goal of these different approaches is to estimate pollutant loads from vehicles and predict their impact on ambient air quality.
This document discusses different approaches to vehicle emission modeling, including emission inventory models, dispersion modeling, and receptor modeling. It provides details on some commonly used models, including CORINAIR and IPIECA toolkit for emission inventory, ISCST3 and Calpuff for dispersion modeling, and Chemical Mass Balance (CMB) for receptor modeling. The goal of these different approaches is to estimate pollutant loads from vehicles and predict their impact on ambient air quality.
On March 11, 2016, ICLR held a Friday Forum workshop entitled 'Mapping extreme rainfall statistics for Canada', led by Dr. Slobodan Simonovic of Western University.
Climate change is expected to increase the frequency and intensity of extreme rainfall events, affecting rainfall intensity-duration-frequency (IDF) curve information used in the design, maintenance and operation of water infrastructure in Canada. Presented in this lecture are analyses of precipitation data from 567 Environment Canada hydro-meteorological stations using the IDF_CC tool. Results for the year 2100 based on Canadian climate model and an ensemble of 22 GCMs have been generated. A spatial interpolation method was used to produce Canadian precipitation maps for events of various return periods. Results based on the Canadian climate model indicate a reduction in extreme precipitation in central regions of Canada and increases in other regions. Relative to the ensemble approach, the Canadian climate model results (a) suggest more spatial variability in change of IDFs, and (b) the ensemble approach generated generally lower values than the Canadian climate model.
Dr. Simonovic has extensive research, teaching and consulting experience in water resources systems engineering. He teaches courses in water resources and civil engineering systems. He actively works for national and international professional organizations. Dr. Simonovic’s primary research interest focuses on the application of systems approach to management of complex water and environmental systems. Most of his work is related to the integration of risk, reliability, and uncertainty in hydrology and water resources management. He has received a number of awards for excellence in teaching, research and outreach. He has published over 450 professional publications and three major textbooks. He was inducted to the Canadian Academy of Engineering in June of 2013.
Temporal trends of spatial correlation within the PM10 time series of the Air...Florencia Parravicini
We analyse the temporal variations which can be observed within time series of variogram parameters (nugget, sill and range) of daily air quality data (PM10) over a ten years time frame.
International Journal of Computational Engineering Research(IJCER)ijceronline
This document describes the development of Intensity-Duration-Frequency (IDF) relationships for rainfall in Abha City, Saudi Arabia. The author analyzed 34 years of rainfall data from an Abha station to generate IDF curves using three statistical distributions - Gumbel, Log normal, and Log Pearson Type III. IDF curves were developed for eight durations from 10 to 720 minutes and six return periods from 2 to 100 years. Equations to calculate rainfall intensity based on duration and return period were derived for Abha using the three statistical techniques. The results from the techniques showed good agreement. The document also provides background on IDF relationships and reviews several previous related studies conducted in other regions.
Many studies have shown that the increased atmospheric concentration of pollutants has an intensified health risk on lung-, heart- and cardiovascular disease sufferers, as well as the increasing willingness of morbidity and mortality. Therefore, the monitoring of the air pollutants is particularly important. The goal of the recent study was to show a complex picture about Veszprém county’s air quality situation and to discover the relationships between the selected air pollutants (PM10, CO, NO2, SO2, O3) concentration and the picked health diseases (cardiovascular diseases, respiratory diseases, gastrointestinal disorders, ischemic heart disease, cerebrovascular disease, and chronic lower respiratory diseases). Ambient air pollution and hospital admission data for the research were obtained for 2005–2013. According to the calculations; it was found that there was a moderate relation between the air pollutants concentrations and the health diseases.
Simulating the dispersion of traffic emissions at the microscaleIES / IAQM
The MAGIC project aims to develop integrated models to simulate urban air quality and energy consumption at microscales. It uses computational fluid dynamics (CFD) software and data assimilation to model pollutant dispersion from traffic emissions. Field, wind tunnel and laboratory experiments are used to validate the models. Exposure analyses show highly variable pollutant concentrations at microscales. Momentary peak exposures of seconds to minutes may impact total exposure, but their health effects are unclear. Ultra-fast measurements of nitrogen oxides show concentration spikes corresponding to vehicles. CFD simulations of a crossroads reproduce observed hotspots at junctions from queuing traffic. Tracking vehicle movements through simulations could help identify scenarios leading to acute exposures that need mitigation.
This document summarizes the key parts of an abstract for a research paper. It outlines that an abstract typically includes the study area, objectives, methodology, results, conclusions, and recommendations. It then provides an example abstract that applied two techniques, the weighted overlay method and boolean logic, to determine the best locations for artificial groundwater recharge in Sadat City, Egypt. The results showed the northern part of the city was best suited. It concludes by recommending both methods can be useful depending on needs, with the weighted overlay method providing more flexible results.
Tarımsal Toprak Haritalama'da Jeofizik MühendisliğiAli Osman Öncel
1) The document discusses a study evaluating the reliability and reproducibility of electromagnetic induction (EMI) data collection.
2) The study compared data from two identical EMI instruments, the calibration methods of different individuals, and variations in calibration height.
3) The results showed significant differences between instruments, calibrations, and heights. This demonstrates the need for standardization of EMI data collection procedures to ensure reliable and reproducible data.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
IJERA (International journal of Engineering Research and Applications) is International online, ... peer reviewed journal. For more detail or submit your article, please visit www.ijera.com
IJERA (International journal of Engineering Research and Applications) is International online, ... peer reviewed journal. For more detail or submit your article, please visit www.ijera.com
IJERA (International journal of Engineering Research and Applications) is International online, ... peer reviewed journal. For more detail or submit your article, please visit www.ijera.com
IJERA (International journal of Engineering Research and Applications) is International online, ... peer reviewed journal. For more detail or submit your article, please visit www.ijera.com
IJERA (International journal of Engineering Research and Applications) is International online, ... peer reviewed journal. For more detail or submit your article, please visit www.ijera.com
IJERA (International journal of Engineering Research and Applications) is International online, ... peer reviewed journal. For more detail or submit your article, please visit www.ijera.com
IJERA (International journal of Engineering Research and Applications) is International online, ... peer reviewed journal. For more detail or submit your article, please visit www.ijera.com
O documento descreve um plano de alimentação equilibrado para um dia, incluindo refeições como pequeno-almoço, almoço, jantar e lanches, com ênfase em incluir diferentes grupos alimentares como leite, cereais, legumes, carne e fruta. O plano foi desenvolvido por Rosa Martins e Deolinda Costeira.
La madre le desea a su hija lo mejor en este nuevo capítulo de su vida como mujer joven que empieza su propio camino. Recuerda con cariño cuando la llevó dentro de su vientre y la cuidó con amor y ternura. Le desea suerte en este nuevo sendero y que encuentre la felicidad, contando siempre con el apoyo de su familia. La hija es el tesoro más preciado para su madre.
The Vice Chancellor determined Dell's fair value was $17.62 per share, 26% above the buyout offer of $13.96. He developed a hybrid valuation model selecting reliable data from each expert. The Chancellor found issues with relying solely on market price and LBO models in determining fair value. He ultimately weighted two valuation approaches equally to determine Dell's fair value fell between $16.43-$18.81 per share.
A empresa de tecnologia anunciou um novo smartphone com câmera avançada, tela grande e bateria de longa duração por um preço acessível. O aparelho tem como objetivo atrair mais consumidores para a marca com especificações de ponta a um custo menor que os principais concorrentes. Analistas esperam que o lançamento ajude a empresa a ganhar participação no competitivo mercado de smartphones.
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive functioning. Exercise boosts blood flow, releases endorphins, and promotes changes in the brain which help enhance one's emotional well-being and mental clarity.
Joseph Rushemeza is seeking a position to assist with gathering and analyzing financial information while improving his skills. He has a Bachelor's degree in Business Administration from Millersville University with a concentration in finance and relevant coursework. His experience includes processing orders and ensuring accuracy at Grocery Outlet, loading/unloading trucks at UPS, and coordinating with coworkers to help customers at Kohl's. His skills include using Microsoft Office programs to organize and present financial data, advanced data analysis, financial statement analysis, forecasting, communication, and the ability to acquire new skills quickly.
Urban Air Quality Modelling and Simulation: A Case Study of Kolhapur (M.S.), ...IDES Editor
As a consequence of urbanization a phenomenal
surge has been observed in the vehicular population in India,
giving rise to elevated levels of traffic related pollutants like
carbon monoxide, nitrogen oxides, hydrocarbons, and
particulates in Indian urban centers. These pollutants can
have both acute and chronic effects on human health. Thus
air quality management needs immediate attention. Air
quality models simulate the physical and chemical processes
occurring in the atmosphere to estimate the atmospheric
pollutant concentration. A variety of air quality models are
available ranging from simple empirical models to complex
Computational Fluid Dynamic (CFD) models. Air quality
models can be a valuable tool in pollution forecasting, air
quality management, traffic management and urban planning.
This paper evaluates the performance of widely used Danish
Operational Street Pollution Model (OSPM) under Indian
traffic conditions. Comparison between predicted and observed
concentrations was performed using both quantitative and
statistical methods. OSPM was found to perform exceedingly
well for the prediction of particulates whereas NO2 predictions
were poorly predicted.
A Review Article on "Environmental Impact Assessment" (Eia)IRJET Journal
This document provides a literature review of various studies that have assessed the environmental impacts of highway projects using environmental impact assessments (EIAs). It summarizes nine research papers/reports that used EIAs to evaluate the effects of highways on air and water quality, noise levels, and other environmental factors. The studies found that highway construction and use can increase air and water pollution as well as noise levels. However, EIAs help identify these impacts so they can be mitigated. The document emphasizes the importance of thorough EIAs and monitoring both during and after projects to understand environmental effects.
Air Pollution Prediction via Differential Evolution Strategies with Random Fo...IRJET Journal
This document discusses using a hybrid machine learning technique combining differential evolution and random forest methods to predict air pollution levels. It analyzes data on various pollutants from two cities in India - Delhi and Patna. The proposed approach is experimentally validated to achieve better performance compared to independent classifiers and multi-label classifiers in terms of accuracy, area under the curve, success index and correlation. Differential evolution is used to initialize population and optimize candidate solutions. Random forest creates an ensemble of decision trees to make predictions. The hybrid method is tested on predicting carbon monoxide, nitrogen dioxide and benzene levels using data from a monitoring station in Delhi.
Assessment of Ambient Air Quality of Hoshangabad of M.P.ijtsrd
Air quality assessment is frequently driven by the need to determine whether a standard or guideline has been exceeded. This overshadows another objective of air quality assessment providing the information needed to estimate population exposure to air pollution and the effects on the health of the population. In this study analysis of air pollutants such as PM10, PM2.5, SO2, and NO2, were assessed to determine the ambient air quality of Hoshangabad City. The PM10 and PM2.5 were found moderate for residential area i.e. Meenakshi Chowk and higher than the permissible limit for other monitoring stations. Seasonal variation of PM10 and PM2.5 showed that in winter air quality becomes worst due to low temperature and humidity particulate matter condenses in lower atmosphere. Gaseous air pollutants SO2, and NOx were well below the permissible limit in all the sampling station in all three study years. Seasonal values for SO2 and NO2 were also found within the permissible limits at all the stations and in all the seasons. Deepa Rajput | Dr. O. N. Choubey "Assessment of Ambient Air Quality of Hoshangabad of M.P." Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-7 | Issue-5 , October 2023, URL: https://www.ijtsrd.com/papers/ijtsrd59941.pdf Paper Url: https://www.ijtsrd.com/humanities-and-the-arts/environmental-science/59941/assessment-of-ambient-air-quality-of-hoshangabad-of-mp/deepa-rajput
Selection of optimal air pollution control strategieseSAT Journals
The document presents a mixed integer non-linear programming (MINLP) model for selecting optimal air pollution control strategies. The model aims to minimize total costs, including installation, operating, and health costs of pollution control equipment, while meeting emission reduction targets. It considers multiple pollutants from multiple emission sources and multiple control technologies. Case studies applying the model to a cement plant and power plant are used to demonstrate its effectiveness in identifying lowest-cost compliance options.
An Analytical Survey on Prediction of Air Quality Indexijtsrd
A drastic increase of modernization gives birth to many industries and automobiles, which intern becomes the very common reason for the environmental issues like Air and water pollutions. Air pollution is the immediate affecting factors in our life, which contaminates the air that we breathe to cause serious health hazards. So it is very important to predict the Air quality index for the future coming days so that proper prompt action can be taken by the concern authorities to curb the same. The air quality reading for the different gases can be collect through the physical sensors and these readings can be used to predict the future Air quality index. Machine learning is acting as the catalyst in this prediction scenario to predict the accurate Air quality index for the future instance. Most of the learning systems need a huge amount of the data for the learning purpose and it is not possible to provide this every time. So it is a need to predict the air quality index by using considerable less amount of past instance data, This paper mainly concentrates on analyzing the past work in prediction of air quality index using machine learning and try to evaluate their flaws and to estimate the new possible way of prediction using machine learning. Suraj Kapse | Akshay Kurumkar | Vighnesh Manthapurvar | Prof. Rajesh Tak "An Analytical Survey on Prediction of Air Quality Index" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-6 , October 2019, URL: https://www.ijtsrd.com/papers/ijtsrd28072.pdf Paper URL: https://www.ijtsrd.com/engineering/information-technology/28072/an-analytical-survey-on-prediction-of-air-quality-index/suraj-kapse
IRJET - Air Quality Index – A Study to Assess the Air QualityIRJET Journal
This document discusses a study on assessing air quality in Delhi, India using the Air Quality Index (AQI). It provides background on air pollution and the importance of measuring AQI. The study calculates daily AQI values over three years for Delhi based on concentrations of pollutants like NO2, SO2, SPM and RSPM. The results show AQI values were regularly unhealthy around 200. SPM and RSPM correlated most strongly with AQI, suggesting they are major contributors to air pollution. Stricter measures are needed to address rising levels of particulate matter and improve air quality.
the effect of social and economic development on air pollution in indian citiesAhammed Aflah E
This document summarizes a study that examines the effect of social and economic development on air pollution levels in Indian cities. It presents estimates of air pollution production functions using data from multiple Indian cities to test relationships between income, literacy, population, and four measures of air pollution. The study finds that the relationship between development and pollution varies across pollution types and indicators. Specifically, it finds positive relationships between income and nitrogen dioxide emissions and income and particulate matter levels.
Impact of Air Quality on Human Health In The Vicinity of Construction Sites i...IJERA Editor
Construction sites are important source of air pollution emitting pollutants like PM10, etc. which adversely affect human health especially the respiratory system. The present study aims at monitoring of PM10, health condition of workers, evaluation of API (Air Pollution Index) and development of correlation between API and human health in the vicinity of construction sites. In the present study relevant literature review has also been carried out to study and analyze the impact of air pollution on human health. Reconnaissance survey of 19 selected construction sites in Delhi-NCR has been conducted for the period January 2013 to December 2013 and health related data of people in the vicinity of construction sites has been collected individually through a questionnaire. The air quality data (for pollutant PM10) for the area in which the selected construction sites lie has been obtained from the continuous monitoring stations of Central Pollution Control Board. The monthly average PM10 concentration in the ambient air for the study period has been obtained for all the sites. The annual average PM10 level of all the sites has been estimated and compared with the prescribed value. Also the air pollution index (API) (for pollutant PM10) has been calculated for each site and compared with the percentage of people suffering with respiratory problems at the respective sites. The results show that the construction sites where the value of API for PM10 is higher there the percentage of people suffering with respiratory diseases has also been higher.
Time Series Analysis to Forecast Air Quality Indices in Thiruvananthapuram Di...IJERA Editor
Deterioration of air quality is an important issue faced by many cities in India. The increase in the number of vehicles, unrestrained burning of plastics, unacceptable construction and demolition activities and industrial activities are the main reasons for this deterioration. So it is necessary to assess the effectiveness of air quality monitoring programs for planning air pollution control actions by analyzing the trends in air quality regularly. In this study, the varying trends of ambient air quality were analyzed and forecasted in terms of Air Quality Index (AQI) based on the database monitored at different monitoring stations in Thiruvananthapuram District, Kerala, India. The air quality data from the Kerala State Pollution Control Board (KSPCB) shows that the responsible pollutant for AQI in all these stations were Respirable Suspended Particulate Matter (RSPM) due to its abundance in the atmosphere. By forecasting, we can predict the future air quality in terms of AQI or individual pollutants in order to reduce the pollutant concentration and exposure to air pollutants. For air quality forecasting, Auto Regressive Integrated Moving Average (ARIMA) and Seasonal Auto Regressive Integrated Moving Average (SARIMA) method was used. ARIMA models gave satisfactory results than the SARIMA models and these results can be combined with other models to create more accurate results.
Analysis Of Air Pollutants Affecting The Air Quality Using ARIMAIRJET Journal
This document discusses analyzing air pollutants affecting air quality using the ARIMA time series model. It begins with an abstract describing the decreasing air quality due to factors like traffic and industry. It then discusses predicting and forecasting the Air Quality Index using time series models like ARIMA. The document reviews literature on previous studies analyzing air pollution data using techniques like neural networks and random forests. It describes preprocessing time series air pollution data to address missing values and assess stationarity before deploying the ARIMA model to make predictions.
This document describes research using genetic programming (GP) and artificial neural networks (ANN) to develop short-term air quality forecast models for Pune, India. 36 models were developed using daily average meteorological and pollutant concentration data from 2005-2008 to predict concentrations of SOx, NOx, and particulate matter one day in advance. The models were designed to be robust in situations where complete input data is unavailable. Performance of the GP and ANN models was evaluated based on correlation, error, and other statistical measures. The research found that the GP models generally performed better than the ANN models, especially in cases with incomplete data, and had the advantage of generating equation-based forecasts.
APPLYING FIXED BOX MODEL TO PREDICT THE CONCENTRATIONS OF (PM10) IN A PART OF...IAEME Publication
This document describes applying a fixed box model to predict concentrations of particulate matter (PM10) in part of Al-Kut City, Iraq. The model divides the area into a rectangular box and estimates pollutant concentration based on emission sources, wind speed, and mixing height. Input parameters were calculated based on road, vehicle, construction, and domestic emission inventories. Calculated emission capacities were adjusted based on field surveys. The model was run under two mixing height scenarios and results were similar to portable equipment measurements, indicating the fixed box model is easy to use for evaluating air pollution in Al-Kut City.
Analysis Of A Severe Air Pollution Episode In India During Diwali Festival ...Emily Smith
This document analyzes a severe air pollution episode in India during Diwali in late October and November 2016. Air quality index was observed to vary from poor to severe in northern and western India, but was satisfactory to moderate in the south and east. The causes of high pollution levels were examined. Fireworks during Diwali contributed to increased particulate matter, sulfur dioxide, nitrogen oxides and benzene levels in New Delhi, Lucknow, Jaipur and Ahmedabad on Diwali day compared to before and after. Prolonged high pollution in many areas also indicated the importance of biomass burning across India apart from Diwali effects on air quality.
IRJET- Analytical Evaluation of Vehicular Air Pollutants at Urban Arterial Ro...IRJET Journal
This study analytically evaluates vehicular air pollution at urban arterial roads in Rajkot City, India. Traffic and air pollution data were collected over 24 hours at two intersections. Models were developed to predict levels of CO and CO2 based on vehicle composition. The models were validated using statistical tests and found to be acceptable. While concentrations of pollutants like SO2, NOx, PM2.5 and PM10 exceeded national standards, the study was limited in scope. Future work could expand the analysis to other pollutants at additional locations and develop models using other software.
1. The study analyzed the impact of COVID-19 lockdown measures on air quality in major Indian cities using machine learning techniques. Meteorological normalization was used to remove the effects of weather factors from pollutant concentration data.
2. Various deep learning models were used to forecast pollutant concentrations and compare observed concentrations during lockdown. This identified significant reductions in most pollutants during lockdown compared to business-as-usual forecasts.
3. A novel hybrid deep learning-cuckoo search approach was proposed and developed to more accurately forecast pollutant concentrations by optimizing deep learning hyperparameters. This approach can help policymakers develop long-term air quality strategies.
Air pollution is a global environmental challenge that has continued to receive worldwide attention despite the recent decline in concentration of atmospheric pollutants following stringent environmental protection regulations. The major source of this pollution remains fossil fuels; hence the urgent need for cleaner energy sources. This study presents a review of the models applied in monitoring ambient air quality. The primary aim of air pollution modeling is to identify and quantitatively characterize pollutant emission at its source and subsequent dispersion through the atmosphere, subject to meteorological conditions, physical and chemical transformations. The common models and model assumptions for modeling air pollution and quality were critically reviewed and analyzed in this work for application in both forecasting and estimation of air pollutants on the basis of considered causes and in air quality assessment and air pollution control.
The document presents information on emerging technologies for air quality monitoring. It discusses various air pollutants like particulate matter, carbon monoxide, nitrogen oxides, and sulfur dioxides. It also describes different air sampling processes and the application of air quality index (AQI) to report daily air quality levels. The document outlines the objectives to analyze air quality data from pollution control boards and use sensors to provide cautionary values to alert people and improve air quality. It discusses literature review on indoor air quality and wireless sensor networks for air monitoring.
Formulating Guidelines for Effective Implementation of Green Building Scheme ...IJERA Editor
The long-term benefits of green buildings are known at all levels of Government; hence efforts have been taken to promote and incentivize National Green Building Rating System- GRIHA (Green Rating for Integrated Habitat Assessment). Presently, the GRIHA footprint is approximately 29 million square meters, which is less as compared to the pace of development in India. Having said that and presuming the existence of implementation challenges, this research study was conceptualized, primarily with the objective to understand the existing green building policies incentivizing GRIHA, the implementation challenges associated with it and finally formulating guidelines for effective implementation of green building scheme of the ULB (Urban Local Body). The research study based on primary information collated from 71 stakeholders and secondary sources, was concluded with the understanding that the following four components (i) Information Management (ii) Human Resource Management (iii) Knowledge Management (iv) Incentive model & outreach and its detailing as elaborated in the paper is of paramount importance for effective implementation of the green building scheme at the ULB level.
This document summarizes a study analyzing strategies to reduce both air pollution and greenhouse gases in Mexico City. Key points:
1) It develops a database of emissions reduction options from Mexico City's air quality plan and greenhouse gas studies to allow analyzing joint management of pollutants.
2) It implements linear programming and goal programming models to identify lowest-cost strategies for meeting multiple pollutant reduction targets.
3) Analysis finds air quality plan could reduce CO2 3.1% and greenhouse gas measures could reduce CO2 8.7%, though local pollutant reductions are more modest from greenhouse measures.
4) Linear programming allows lowering costs of air quality plan by 20% and achieving greenhouse gas reductions at lower
HCL Notes und Domino Lizenzkostenreduzierung in der Welt von DLAUpanagenda
Webinar Recording: https://www.panagenda.com/webinars/hcl-notes-und-domino-lizenzkostenreduzierung-in-der-welt-von-dlau/
DLAU und die Lizenzen nach dem CCB- und CCX-Modell sind für viele in der HCL-Community seit letztem Jahr ein heißes Thema. Als Notes- oder Domino-Kunde haben Sie vielleicht mit unerwartet hohen Benutzerzahlen und Lizenzgebühren zu kämpfen. Sie fragen sich vielleicht, wie diese neue Art der Lizenzierung funktioniert und welchen Nutzen sie Ihnen bringt. Vor allem wollen Sie sicherlich Ihr Budget einhalten und Kosten sparen, wo immer möglich. Das verstehen wir und wir möchten Ihnen dabei helfen!
Wir erklären Ihnen, wie Sie häufige Konfigurationsprobleme lösen können, die dazu führen können, dass mehr Benutzer gezählt werden als nötig, und wie Sie überflüssige oder ungenutzte Konten identifizieren und entfernen können, um Geld zu sparen. Es gibt auch einige Ansätze, die zu unnötigen Ausgaben führen können, z. B. wenn ein Personendokument anstelle eines Mail-Ins für geteilte Mailboxen verwendet wird. Wir zeigen Ihnen solche Fälle und deren Lösungen. Und natürlich erklären wir Ihnen das neue Lizenzmodell.
Nehmen Sie an diesem Webinar teil, bei dem HCL-Ambassador Marc Thomas und Gastredner Franz Walder Ihnen diese neue Welt näherbringen. Es vermittelt Ihnen die Tools und das Know-how, um den Überblick zu bewahren. Sie werden in der Lage sein, Ihre Kosten durch eine optimierte Domino-Konfiguration zu reduzieren und auch in Zukunft gering zu halten.
Diese Themen werden behandelt
- Reduzierung der Lizenzkosten durch Auffinden und Beheben von Fehlkonfigurationen und überflüssigen Konten
- Wie funktionieren CCB- und CCX-Lizenzen wirklich?
- Verstehen des DLAU-Tools und wie man es am besten nutzt
- Tipps für häufige Problembereiche, wie z. B. Team-Postfächer, Funktions-/Testbenutzer usw.
- Praxisbeispiele und Best Practices zum sofortigen Umsetzen
UiPath Test Automation using UiPath Test Suite series, part 6DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 6. In this session, we will cover Test Automation with generative AI and Open AI.
UiPath Test Automation with generative AI and Open AI webinar offers an in-depth exploration of leveraging cutting-edge technologies for test automation within the UiPath platform. Attendees will delve into the integration of generative AI, a test automation solution, with Open AI advanced natural language processing capabilities.
Throughout the session, participants will discover how this synergy empowers testers to automate repetitive tasks, enhance testing accuracy, and expedite the software testing life cycle. Topics covered include the seamless integration process, practical use cases, and the benefits of harnessing AI-driven automation for UiPath testing initiatives. By attending this webinar, testers, and automation professionals can gain valuable insights into harnessing the power of AI to optimize their test automation workflows within the UiPath ecosystem, ultimately driving efficiency and quality in software development processes.
What will you get from this session?
1. Insights into integrating generative AI.
2. Understanding how this integration enhances test automation within the UiPath platform
3. Practical demonstrations
4. Exploration of real-world use cases illustrating the benefits of AI-driven test automation for UiPath
Topics covered:
What is generative AI
Test Automation with generative AI and Open AI.
UiPath integration with generative AI
Speaker:
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
Essentials of Automations: The Art of Triggers and Actions in FMESafe Software
In this second installment of our Essentials of Automations webinar series, we’ll explore the landscape of triggers and actions, guiding you through the nuances of authoring and adapting workspaces for seamless automations. Gain an understanding of the full spectrum of triggers and actions available in FME, empowering you to enhance your workspaces for efficient automation.
We’ll kick things off by showcasing the most commonly used event-based triggers, introducing you to various automation workflows like manual triggers, schedules, directory watchers, and more. Plus, see how these elements play out in real scenarios.
Whether you’re tweaking your current setup or building from the ground up, this session will arm you with the tools and insights needed to transform your FME usage into a powerhouse of productivity. Join us to discover effective strategies that simplify complex processes, enhancing your productivity and transforming your data management practices with FME. Let’s turn complexity into clarity and make your workspaces work wonders!
TrustArc Webinar - 2024 Global Privacy SurveyTrustArc
How does your privacy program stack up against your peers? What challenges are privacy teams tackling and prioritizing in 2024?
In the fifth annual Global Privacy Benchmarks Survey, we asked over 1,800 global privacy professionals and business executives to share their perspectives on the current state of privacy inside and outside of their organizations. This year’s report focused on emerging areas of importance for privacy and compliance professionals, including considerations and implications of Artificial Intelligence (AI) technologies, building brand trust, and different approaches for achieving higher privacy competence scores.
See how organizational priorities and strategic approaches to data security and privacy are evolving around the globe.
This webinar will review:
- The top 10 privacy insights from the fifth annual Global Privacy Benchmarks Survey
- The top challenges for privacy leaders, practitioners, and organizations in 2024
- Key themes to consider in developing and maintaining your privacy program
In his public lecture, Christian Timmerer provides insights into the fascinating history of video streaming, starting from its humble beginnings before YouTube to the groundbreaking technologies that now dominate platforms like Netflix and ORF ON. Timmerer also presents provocative contributions of his own that have significantly influenced the industry. He concludes by looking at future challenges and invites the audience to join in a discussion.
Maruthi Prithivirajan, Head of ASEAN & IN Solution Architecture, Neo4j
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1. Sailesh N. Behera, Jayprakash Rout, Mukesh Sharma And Prashant Gargava / International
Journal of Engineering Research and Applications (IJERA) ISSN: 2248-9622
www.ijera.com Vol. 3, Issue 4, Jul-Aug 2013, pp.2278-2294
2278 | P a g e
Development and Evaluation of Control Strategies for Reduction
of Ambient PM10 Levels in Urban Environment: Application of
GIS and Dispersion Modeling
Sailesh N. Behera1
, Jayprakash Rout2
, Mukesh Sharma3
And Prashant
Gargava4
1
Department of Civil and Environmental Engineering, NUS- 117411, Singapore
2
Wipro Technologies, Bangalore- 560035, India
3
Department of Civil Engineering, Indian Institute of Technology Kanpur- 208016, India
4
Central Pollution Control Board, Delhi -110032, India
ABSTRACT
Geographic information system (GIS)
based emission inventory of particulate matter of
aerodynamic diameter less than 10 µm (PM10) for
the base, 5th
and 10th
year was developed for
Kanpur, an urban area in India. It has been
observed that the 5th
and 10th
year will experience
increased emission by factors of 1.5 and 2.2 of the
base year. Twenty one control options (e.g.
introduction of Euro 6 to vehicles, banning of 15
year old private vehicles, use of natural gases as
fuels for industries etc.) were considered for
evaluation. The effectiveness of each control
option was assessed in terms of PM10 reduction
potential using Industrial Source Complex Short
Term (ISCST3) model. A total of four control
scenarios were developed as combination of
several control options and these scenarios were
evaluated for their effectiveness. The evaluation
process through air quality modeling revealed
that the control scenario comprising control
options of: (i) implementation of Euro 6 for
vehicles, (ii) compressed natural gas (CNG) to
commercial and public vehicles, (iii) banning of 15
year old private vehicles, (iv) particulate control
systems in industries etc., was found to be most
effective in reducing the ambient PM10 levels that
could attain 24 hr average air quality standard.
Keywords: Air quality management, particulate
matter of aerodynamic diameter less than 10 micron,
Scenario development, Control option, Euro 6,
Geographical Information System
I. INTRODUCTION
Air pollution is recognized as a serious
public health problem [1, 2] and it is on rise in
developing economies like India due to growth of
population, urbanization, industrialization and
transportation [3–5]. With the intent to control air
pollution, the countries promulgate regulations both
in terms of emission and air quality standards.
Formulation of standards alone cannot improve the
air quality unless it is backed up with a cost-effective
and technologically feasible air pollution control
action plan. Among air pollutants, particulate matter
(PM) is of special interest in the current researches
due its significant role in atmospheric visibility
reduction through the formation of haze, human
health effects and climate change from the regional to
global scale [6, 7]. This paper describes a
methodology for developing and evaluating an air
pollution control action plan, which is meaningful
and accounts for future emissions. The focus of
control action plan and development of strategies in
this paper is on particulate matter of aerodynamic
diameter less than 10 µm (PM10) using an air quality
dispersion model.
The specific methodology for air pollution
control action plan has been demonstrated for the
City of Kanpur (Latitude 26°26′ N and Longitude
88°22′ E; Figure 1; population 4.0 million, 2001
census), India. In the past, several studies had
investigated about the insights of air quality in the
study area [8–12] and these studies concluded that
very high particulate pollution prevails throughout
the year (24 hr average PM10 levels: 50–600 μgm-3
).
The study area is a city with large proportion of
population in the low economic strata which is
vulnerable to higher particulate exposure. From
global context on status of air pollutants, it may be
noted that there are several cities like Kanpur in India
and in other developing countries (e.g. Lucknow,
Varanasi, Patna, Kolkata, Dhaka, and Lahore).
Therefore, approaches made in this study can be
emulated by other cities similar to the study area to
reduce particulate pollution.
In spite of social, economical, political and
legal constraints, air pollution control strategies can
be developed if convincing scientific arguments can
be put forward. This requires quantification of
ground-level pollutant concentrations and linkage of
these concentrations to the impacting sources through
meteorology. It is important for the strategies to be
time sensitive so that the action plan ensures
attainment of air quality standards in future. Air
quality monitoring and modeling are the principal
activities involved in air quality assessment and
preparation of action plans [12 –16]. Air dispersion
2. Sailesh N. Behera, Jayprakash Rout, Mukesh Sharma And Prashant Gargava / International
Journal of Engineering Research and Applications (IJERA) ISSN: 2248-9622
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2279 | P a g e
modeling is widely used to estimate the ground-level
pollutant concentrations and in preparation of air
pollution control strategies [12, 17]. Most countries
have adopted a standard modeling procedure for
regulatory purposes; Industrial Source Complex
Short Term (ISCST3) model of the U.S.
Environmental Protection Agency (USEPA) is
widely used [18, 19].
From the literature reviews, it is evident
that ISCST3 has been used in several air-quality
modeling studies in the past [20 – 25]. However,
these studies are limited to model validation and
prediction of ambient air pollution levels from a
specific source. Previous studies [14, 26] utilized the
capabilities of ISCST3 to assess contribution of
various source emissions towards ambient levels of
air pollutants. Huang et al. [15] investigated the PM10
source apportionment with Comprehensive Air
Quality (CAMx) model in Beijing for finding
contributions of various sources contributing to PM10
level. Kardis et al. [16] predicted inorganic
components of PM1 (fine) and PM1-10 (coarse)
through simulation using CAMx model and estimated
the effect of mineral dust on the formation of
secondary inorganic aerosol in Mexico City
Metropolitan area. Im et al. [27] predicted spatial
distribution of PM10 composition in Istanbul using
the high resolution WRF/CMAQ (Community
Multiscale Air Quality) modeling system. Im et al.
[27] concluded that the contributions of local sources
are significant towards PM10 and they recommended
the need of control strategies focusing on primary
particulate emissions. Our previous study, Behera et
al. [12] was concerned with dispersion modeling of
PM10 by utilizing the capabilities of ISCST3 to find
contributions of different primary sources to PM10.
From the above cited studies on dispersion
modeling and to the best of our knowledge, it could
be inferred that no study has attempted to develop,
evaluate and propose control action plan for
reduction of PM10 from primary sources keeping the
future emissions in view. The novelty of the present
work is in demonstrating a systematic and powerful
methodology utilizing the entire capability of
ISCST3 to provide relative importance of specific
source impacts and integrate the various source
specific control options leading to a comprehensive
air pollution control plan. This will require
examining the efficacy of control options (using
ISCST3) and combining the options into various
scenarios. The scenario analysis is the basic approach
among other analyses (e.g. cost-benefit analysis and
cost-effectiveness analysis) for evaluating efficacies
of alternative emission reduction options [28, 29].
The scenario which ensures compliance with air
quality standards and is most effective in air quality
improvements can be accepted by the community
[30, 31].
The specific objectives of the present study
were: (i) development of GIS-based emission
inventory of PM10, for the base year and future years
(i.e., the 5th
year and 10th
year from the base year),
(ii) identification of various control options and
assessment of their efficacies for air quality
improvements, and (iii) development of scenarios
(through the combination of control options) and
selection of an effective and optimal scenario that
ensures attainment of the air quality standards. To
achieve these objectives, the present study was
performed in Kanpur, India from December 1, 2007
through January 31, 2008. This is to be noted that
objectives of the present study were part of the
scopes of a project that aimed to arrive at policies
that will reduce air pollution in megacities of India
and the project was sponsored by a regulatory body
in India, Central Pollution Control Board (CPCB),
Delhi.
II. MATERIALS AND METHODS
Figure 2 describes the steps to arrive at
proposed control plan for particulate pollution.
Gridded digitized maps with various thematic layers
(e.g. road maps, population maps) are generated in
ArcGIS and air pollution source activity data (e.g.,
location, population, production, fuel use, height of
release, temperature, etc.) for area, line and point
sources are collected from field surveys. To get the
future prediction of PM10 emissions, the activity data
are projected for the 5th
and 10th
year from the base
year. The emission factors along with the activity
data are used to develop GIS-based emission
inventories of PM10 for the base, 5th
and 10th
year. In
the next step, efficacy of each of the control options
is examined (using ISCST3 model) for its sensitivity
to reduce ambient air pollution. Control options with
better capabilities for PM10 reductions are combined
to generate control scenarios. Then the efficacies of
these control scenarios are examined by using
ISCST3 to arrive at options that are able to reduce
PM10 levels substantially.
2.1 The study area
Kanpur city is a large industrial city having
cotton, leather and wool industries of small and
medium scales with a total area of about 270 square
kilometer. The source activities of air pollution in the
city can be broadly classified as: transport,
commercial, industrial, domestic and institutional
activities, and fugitive sources. At several places in
the city, garbage burning (mostly in the evening) is a
common practice, which can be an important
contributor to air pollution. Winds in the study area
are generally light and are mostly from directions
between south-west and north-west.
2.2 GIS-based emission inventory of PM10
2.2.1 GIS and emission estimation methodology
3. Sailesh N. Behera, Jayprakash Rout, Mukesh Sharma And Prashant Gargava / International
Journal of Engineering Research and Applications (IJERA) ISSN: 2248-9622
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The Geostatistical Analyst extension of
ArcGIS (ArcMap, version 9.2; ESRI Inc., Redlands,
WA, USA) was used for this study because of its
relative user friendliness and its frequent use by local
authorities and research institutes for air pollution
management [12, 32]. The topographical map, issued
by the Survey of India (SOI) (prepared in 1977)
having scale of 1:50,000 was geo-coded as the base
map in the form of polygons for geo-referencing the
other maps. This base map was transformed to
Universal Transverse Mercator projection with
Everest 1956 as the datum. The other three maps, (a)
land use, (b) road and railway intersection (from
Central Pollution Control Board (CPCB), New Delhi,
India), and (c) ward (smallest political unit in a city)
boundary (from Kanpur Municipal Corporation) were
geo-referenced. Various thematic layers of gridded
maps (2 km x 2 km) were generated in GIS (e.g.,
road maps, population map). All these sources were
broadly classified into three categories: (1) point
sources, (2) area sources, and (3) line sources. For
details on source categorization, activity data survey,
selection of emission factors and emission estimation
equations, [12] can be referred. However, in this
paper we have given one general equation (Eq(1))
that represents the overall estimation approach of
PM10 emissions from various sources. The total
emission in the grid was estimated using Eq(1):
Emission= (Activity data )×(Emission factor ) (1)source_cat source_catsource_cat
Where, Emission is the emission of PM10 from a
specific identified source category, Activity
datasource_cat is the amount of the specific source
category that generates emissions, Emission
factorsource_cat is the emission factor of PM10 from that
particular source category (i.e. emissions per unit of
activity data utilized).
Figure 1. The Ganga basin, India and study area, Kanpur city with sampling sites on a gridded map (2 km × 2
km) showing land-use patterns
4. Sailesh N. Behera, Jayprakash Rout, Mukesh Sharma And Prashant Gargava / International
Journal of Engineering Research and Applications (IJERA) ISSN: 2248-9622
www.ijera.com Vol. 3, Issue 4, Jul-Aug 2013, pp.2278-2294
2281 | P a g e
ArcGIS: Map digitization and formation of thematic
layers of maps including 2 km × 2 km gridded map
Collection of source information activity level data
(e.g., population, fuel uses, vehicle count etc.)
Arc GIS: Development of emission inventory of PM10 for the base
year and the future (5th
year and 10th
year) with business as usual
Efficacy of possible control options: Air quality simulation by
ISCST3 for the base and the future (5th
year and 10th
year):
Formulation of control scenarios by combinations of control options
Efficacy of possible control scenarios: Air quality
simulation by ISCST3 and selection of Best Control
Scenario for the future (5th
year and 10th
year)
ArcGIS: Generation of ambient concentration profile
maps for the future years with best scenario proposed
Base map
Meteorology
Topography
Meteorology
Topography
Digitized
gridded map
Area sources
Line sources
Point sources
Emission factors
Figure 2. Summary of the steps for methodology of the study
2.2.4 Business as usual (BAU) emission inventory
In the development of emission inventory, it
was considered 2007 as the base year, 2012 as the
future 5th
year, and 2017 as the future 10th
year
assuming that the source specific activity levels will
grow following the current trends. This projected
emission inventory of PM10 was referred to as
having obtained from BAU scenario. In Kanpur city,
the vehicles and population are growing rapidly
(annual growth: 13% for vehicles and 2.8% for
population; Census India 2011) and the industrial
growth is negligible. The vehicle registration records
for the last five years were obtained from the
Regional Transport Office, Kanpur and based on
vehicular growth rate, the numbers of vehicles in
different categories were projected for the future
years. The study assumed the population growth is
spatially independent. The activity data for most of
the area sources (e.g. domestic cooking, garbage
burning) were predicted following the population
growth rate. In reference to the projected source
activity data, emission inventory was developed in
each grid for the future years. In the subsequent
sections on discussions, these emission inventories
will be referred to as ‗Emission BAU base year‘,
‗Emission BAU 5th
year‘ and ‗Emission BAU 10th
year‘.
2.3 Air-quality monitoring and modeling of PM10
2.3.1 Air quality monitoring
For assessment of air quality status and
validation of dispersion modeling, air quality
monitoring was undertaken at seven sampling sites
(Figure 1). The duration of sampling was from
December 1, 2007 to January 31, 2008 in the winter
season. The Partisol® model 2300 4-channel
speciation samplers (Thermo Fisher Scientific Inc.,
USA) were used to collect air through an inlet (at a
flow rate of 16.7 LPM) that removes particles with
aerodynamic diameters greater than 10.0 μm; the
remaining particles (i.e. PM10) were collected on the
Teflon filter (Whatman grade PTFE filters of 47 mm
diameter) and mass concentration of PM10 was
determined gravimetrically following the standard
5. Sailesh N. Behera, Jayprakash Rout, Mukesh Sharma And Prashant Gargava / International
Journal of Engineering Research and Applications (IJERA) ISSN: 2248-9622
www.ijera.com Vol. 3, Issue 4, Jul-Aug 2013, pp.2278-2294
2282 | P a g e
operating procedures [33]. Filter paper exposure for
each sample was 8 hr. Reporting and interpretation of
results in this paper have been done on the basis of a
24 hr average data. Meteorological parameters
(temperature, relative humidity, wind speed and wind
direction) were recorded using a wind monitor
(WM251 Envirotech, New Delhi, India).
2.3.2 Dispersion modeling
Keeping in view the industrial, vehicular,
road dust, domestic and fugitive sources,
meteorology, topography and data availability,
USEPA model ISCST3 model was identified as an
appropriate model for prediction of ground level
concentration of PM10 [34]. The model is based on
Gaussian dispersion plume algorithm derived from
steady state assumption in three-dimensional
advection diffusion equation. The ISCST3 model is a
popular model among the modelers and it has unique
features such as the capability to handle polar or
Cartesian co-ordinates, simulate point, area and
volume sources, considers wet and dry deposition,
makes terrain adjustments, building downwash
consideration, etc. For details of ISCST3, readers can
refer to [34, 35].
The input data to the model were receptor
site information (location), meteorological and
detailed characteristic of the source emission. The
detailed characteristics of source emission include
pollutant emission rate, flue gas exit velocity and
temperature, stack height and its top inner diameter.
Meteorological data include wind speed and
direction, ambient temperature, atmospheric stability
class and mixing height. In this study, PM10
concentrations were predicted at eighty-five receptor
locations (one in each grid of 2 km × 2 km).
Although ISCST3 does not take into account the
secondary sources, but the control of primary sources
will indirectly reduce the secondary formation. The
reason may be due to the fact that the precursor gases
responsible for formation of secondary particle
formation (e.g., nitrogen oxides, sulfur dioxide,
ammonia, volatile organic compounds) will be
controlled, when there will be decrease in emission of
primary sources [27].
2.3.2 Performance evaluation of dispersion model
The model performance is tested by
comprehensive statistical analyses [12, 18, 22, 36].
These include: (i) fractional bias (FB), (ii)
normalized mean square error (NMSE), (iii)
coefficient of correlation (r), and (iv) index of
agreement (d). The expressions for these statistical
measures are as follow:
(6)
0.5 ( )
O P
FB
O P
2
1 ( )
1 (7)
N
N O Pi iiNMSE
O P
1
1
( )( )
(8)
N
i i
i
o p
N O O P P
r
2
1
2
1
( - )
1- (9)
- -
N
i i
i
N
i i
i
P O
d
P O O O
Where, the terms Pi and Oi are the predicted
and observed PM10 concentration, O and P are mean
of observed and predicted PM10 concentrations, o
and p are the standard deviations of observed and
predicted concentrations of PM10 in a data set.
2.4 Development of control options
There is a need to explore control options
with respect to technological feasibility and
management viability pertinent to each source for
reducing the levels of PM10; a list of control options
(21 numbers) considered is presented in Table 1. The
growth scenario trends revealed that the vehicular
sources will be the dominating polluting source in the
future. Therefore, more possible control options were
considered for vehicular emissions in this study.
These control options mentioned in Table 1 were
tested to check their efficacies in reducing levels of
PM10 concentration. For this purpose, the modeling
exercise was performed through ISCST3 and the
details of this simulation exercise is discussed in
Section 3.3.
III. RESULTS AND DISCUSSION
3.1 BAU Emission inventory of PM10
The spatial distributions of PM10 emissions
from all identified sources are demonstrated in Figs.
3(a), (b) and (c) under the BAU activities for the
base, 5th
and 10th
year, respectively. The clear
observations were made with emissions that it will
increase dramatically in the 10th
year as compared in
the 5th
year. In spatially distributed maps, it was also
observed that the high pollution areas were identified
as the city centre and the industrial area, where most
of the pollution activities and congestion problems
exist. The overall assessment at city level revealed
that the total emission will be increased by a factor of
1.5 in 5th
year and by a factor 2.2 in 10th
year of the
base year. It can be seen in Figure 3 that the area
6. Sailesh N. Behera, Jayprakash Rout, Mukesh Sharma And Prashant Gargava / International
Journal of Engineering Research and Applications (IJERA) ISSN: 2248-9622
www.ijera.com Vol. 3, Issue 4, Jul-Aug 2013, pp.2278-2294
2283 | P a g e
emitting PM10 in the range of 251-500 kg/day was 8
km2
in the base year and for the same emission range,
the area will be increased to 12 km2
in the 5th
year
and 20 km2
in the 10th
year. The major increase in
emission from the base year to the future years has
been seen from vehicular sources.
The BAU emissions in the base and the
future years with details of contributions of identified
sources to the total emission are presented in Table 2.
In the base year, the highest emission was from the
industrial point sources, mainly from a 200 MW coal-
based thermal power plant (Panki thermal power
plant; Figure 1). In the 5th
and 10th
year, vehicles will
be the predominant source contributing 24% and 29%
to total PM10 emission loads (compared to 20% in the
base year). Similarly next to vehicles, domestic
cooking and road dust will be among the top
contributors to PM10 in the 5th
and 10th
year. The
estimated emission suggests that there are many
important sources and a composite emission
abatement including most of the sources will be
required to attain the desired air quality.
Table 1. Details of possible particulate control options with their reduction efficiencies in emission factors
Option
No.
Details of control option Expected % reduction in
emissions factor (EF) of PM10
Details of possible implementation scheme in
the future years+
Option- 1 Implementation of Euro 5
norms
80% reduction of emissions in
comparison to the Euro 4 standard
Euro 3 is in progress for the base year,
Euro 4 to be implemented from 3rd
year,
Euro 5 will be possible from 8th
year
Option- 2 Implementation of Euro 6
norms
No difference between Euro 5 and
Euro 6 for PM10 (NOx reduction is
more in Euro 6)
Euro 6 will be possible from 8th
year, if
proposed
Option- 3 Electric vehicles
introduction
100% PM10 reduction (Zero
emissions)
Share electric vehicles as total fleet of city as:
1% of 2W, 5% of 3W, cars and public buses by
the 5th
year , and 2% of 2W, 10% of 3W, cars
and public buses by 10th
year
Option- 4 Compressed natural gas
(CNG) to commercial and
public vehicles
EF reduction by 75% as compared
to Euro 3
25% conversion by 5th
year
100% conversion by 10th
year
Option- 5 Bio-diesel (B5/B10: 5 –
10% blend)
EF reduction by 10% of the
existing stage
Share of biodiesel fuel to 5% by the 5th
year and
10% by 10th
year
Option- 6 Retro fitment of diesel
oxidation catalyst (DOC)
EF reduction by 22.5 % compared
to Euro 3
25% conversion by 5th
year and 100%
conversion by 10th
year to 4 wheeler public
transport city buses
Option- 7 Retro fitment of diesel
particulate filter (DPF)
EF reduction by 70% compared to
Euro 3
25% conversion by 5th
year and 100%
conversion by 10th
year to 4 wheeler public
transport city buses
Option- 8 Inspection/ maintenance (I
and M) of vehicles
EF reduction as compared to Euro
3: public transport vehicles and 3W
– 12.5%, 4-W (diesel) –7.5%
New I & M regulation introduced and
compliance by 50% anticipated by 5th
year and
100% anticipated by 10th
year
Option- 9 Banning of 15 year old
private vehicles
100% reduction of off-road
vehicles
Old vehicles of 15 years or older to be banned
by 5th
year and 10th
year
Option- 10 Improvement of public
transport
Improvement of public transport:
% share on VKT of 4W cars, 2W
bikes and buses
10% shift in VKT by 5th
year and 20% shift in
VKT by 10th
year
Option- 11 Industry fuel change EF reductions by 100% for natural
gas to be used as fuel
Change solid fuels to natural gas by 5th
year
Option- 12 Particulate control system
(PCS) in industry
Particulate control systems have
95% collection efficiency of PM
Implementation of use of particulate control
system such as cyclone, bag filter (BF) etc. by
5th
year
Option- 13 Shifting of air polluting
industries to out of the city
Deduction of emission load from
shifted industries
50% air polluting industries shifted
out by 5th
year and 100% air polluting
industries shifted out by 10th
year
Option- 14 Domestic-use of liquefied
petroleum gas (LPG)
Appropriate EF to be used 50% of solid fuel, kerosene to be shifted to
LPG by 5th
year, and 75% of solid fuel,
kerosene use to be shifted to LPG by 10th
year
Option- 15 Inspection and maintenance
(I and M) of large DG sets
EF reductions by 15% Strict compliance to be followed for proper
inspection and maintenance by 5th
year
Option- 16 Adequate supply of grid Zero emissions from DG sets 50% power from DG sets by 5th
year and 100%
7. Sailesh N. Behera, Jayprakash Rout, Mukesh Sharma And Prashant Gargava / International
Journal of Engineering Research and Applications (IJERA) ISSN: 2248-9622
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2284 | P a g e
power power (0% from DG sets) from grid power by
10th
year
Option- 17
Better construction practices
EF reductions by 50% 50% reduction from construction
activities in 5th
year and 10th
year
Option- 18 Converting unpaved roads to
paved roads
Appropriate EF for emissions from
respective roads to be used
Conversion of 50% unpaved roads to paved by
5th
year, 100% unpaved roads to paved by 10th
year
Option- 19 Wall to wall paving with
brick
EF reduction by 15% on paved
roads and by 40% on unpaved
roads
Applied to major roads by 5th
year,
Applied to major roads and minor roads with
heavy traffic by 10th
year
Option- 20 Sweeping and watering (S
and W) (mechanized)
EF reduction by 20% on paved
roads and by 50% on unpaved
roads
Applied to major roads by 5th
year,
Applied to major roads and minor roads with
heavy traffic by 10th
year
Option- 21 Strict compliance to ban of
open burning
Suitable EF reductions to be used 50% compliance to be achieved by 5th
year and
100% compliance to be achieved by 10th
year
*2W for two wheeler motor bikes, 3W for three wheeler auto and tempo, DG sets for diesel generator;
+
the future year is with respect to the base year (e.g., 5th
year means, the future 5th
year from the base year)
Table 2 BAU emissions in the base year and the future for PM10
Particular of source Base year Future 5th
year Future 10th
year
ton day-1
% of total ton day-1
% of total ton day-1
% of total
Industry (point source) 2.9 25 2.9 17 2.9 11
Industry (area source) 0.8 7 0.8 5 0.8 3
Vehicles 2.3 20 4.1 24 7.3 29
Domestic cooking 2.1 18 3.4 20 5.5 22
Paved and unpaved road dust 1.6 14 3.0 17 5.0 20
Open burning1
1.0 9 1.5 9 2.3 9
Hotel and restaurant uses 0.4 4 0.7 4 0.9 4
DG sets 0.1 1 0.4 2 0.6 2
Rest other sources2
0.2 2 0.3 2 0.4 2
Total 11.4 100 17.1 100 25.6 100
1
Open burning includes: garbage and agricultural waste; 2
Rest other sources include: bakery, construction and
demolition and medical waste incinerators
3.2 Ambient air quality status and dispersion
modeling
3.2.1 Ambient air quality status
Table 3 presents the 24 hr average observed
ambient concentration (mean, standard deviation and
number of observations) of PM10 mass at seven
sampling sites. The average mass concentration of
PM10 at IIT Kanpur site was the lowest as 196 µgm-3
and the highest 24-hr average PM10 concentrations
were observed at Dadanagar site (industrial site) as
396 µgm-3
. The pollution levels were very high at all
sites, as 24 hr Indian Standard of 100 µgm-3
was not
attained. These monitoring results suggest that
various control options (Table 1) for reductions of
PM10 should be explored for their effectiveness.
The meteorological parameters observed
during the monitoring program were prevailing wind
direction as west and north-west and wind speed as
0.83 ± 0.54 ms-1
[37]. The average ambient
temperature was 13.51 ± 4.63°C and the relative
humidity was 68.54 ± 19.12%. Mixing height varies
between 200 m (midnight) and 1600 m (midday)
[37]. The atmospheric stability remains unstable,
moderately unstable and slightly unstable during
daytime and neutral, slightly stable and stable during
nighttime [12, 37, 38].
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2285 | P a g e
(a) Emission BAU: the base year
(b) Emission BAU: the future 5th
year
(c) Emission BAU: the future 10th
year
Figure 3. PM10 Pollution Load over the City (2 km × 2 km) with Emissions BAU for: (a) the base year (b) the
future 5th
year (c) the future 10th
year
3.2.2 Performance evaluation of dispersion model
For the purpose of model validation, the air
quality simulations were carried out using ISCST3
model at seven monitoring sites for the days of
measurements. Predictability of ISCST3 model for
ambient PM10 levels was examined using four
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2286 | P a g e
statistical parameters (Eqs 6 to 9: Section 2.3.2) by
comparing the observed concentration with predicted
concentration at seven locations. It has been observed
that: (i) values of FB are in the range between 0.29
and 0.61, (ii) NMSE levels are in the range between
0.28 and 0.62, (iii) r varies from 0.64 to 0.78, and (iv)
estimated values of d are in the range between 0.49
and 0.79 for winter.
The parameter FB uses the arithmetic
concentrations and indicates the tendency and the
sign of the deviation. This is a nonlinear operator that
varies between -2 and +2 and has an ideal value of 0
for best model performance ([18, 12] Abdul-Wahab
et al. 2003; Behera et al. 2011). A negative FB value
indicates that model over-predicts and positive value
suggests under prediction. In this study, overall
values of FB is positive, i.e., 0.48 indicating under
prediction of PM10 concentrations. It has been
suggested that preference of NMSE over FB, which is
an unbiased dimensionless statistic and measures the
random spread of the values around the mean; i.e.,
deal with variance or scatter ([20] Kumar et al. 1999).
Smaller values of NMSE indicate better model
performance and a general accepting criterion is:
NMSE ≤ 0.5. In this study, the overall average value
of NMSE of summer and winter was estimated to be
0.38 and it is reasonable to assume that model
performance is satisfactory.
The coefficient of correlation (r; Eq. 8)
between observed and predicted values is another
independent indicator of model performance. In this
study the overall r was found out to be 0.72
(statistically significant at 5% level of significance)
indicating linear association in observed and
predicted concentrations. The index of agreement is
used because the coefficient of correlation (r) cannot
account for additive differences or differences in
proportionality ([39] Brazell et al. 1993; [36] Dutot et
al. 2007). The overall value of d was found to be 0.66
and it independently suggests that model is adequate
for application and decision making. Figure 4 shows
model performance for a large data set of 174
observations. The lines of 1:1, 1:2 and 2:1 agreement
between observed and predicted concentration are
also shown in Figure 4. Overall, the statistical
analyses substantiate that the model can describe
physical phenomena well and can be applied for
further interpretation and application, limitation
being the fact that the model under predicts. This
issue of under prediction might be due to the fact that
secondary particle formation is not taken into account
by the model.
3.3 Evaluation of efficacy of control options
For the purpose of evaluating the efficacies
of control options, ISCST3 modeling simulations
were performed by considering all emitting sources
in the city and highest 150 receptor concentrations
exceeding the air quality standards were considered.
These grids were considered as critical grids
requiring a strategy to control pollution through
combination of various control options. The objective
is to ensure attainment of air quality standard for
PM10 in these critical grids. Needles to say that if
standard is attained in these critical grids, standard
will be attained in the entire city. Figure 5a shows an
example of the simulation results in critical 10 grids
with their identification numbers. These identified
grids will be addressed further. Figure 5b shows
predicted ambient PM10 levels with BAU activities in
the base, 5th
and 10th
year in these critical grids. It has
been observed that in the base year, estimated PM10
concentration (in these 10 grids) varied from 158 to
395 µgm-3
; average source contributions (to
concentrations) were as follows: vehicles (22%),
domestic cooking (20%) and road dust (16%). In the
5th
year, concentration could range from 216 to 530
µgm-3
with contributions from vehicles (29%),
domestic cooking (22%) and road dust (17%). In the
10th
year, concentration range could be between 280
and 687 µgm-3
with contributions from vehicles
(35%), domestic cooking (24%) and road dust (18%).
It is seen that Kanpur is a highly polluted and the city
is distressed under high PM10 pollution and massive
efforts are required to reduce PM10 levels. One needs
to know not only relative strength of contributing
sources but also examine which control option and
combination of options will be most effective.
To test the efficacy of control options (Table
1), modeling was performed twice: with and without
the control option for each source (keeping other
sources as being absent) and impact on PM10 air
quality is assessed in 10 critical grids. The modeling
results were specifically examined in terms of percent
reduction (in PM10) caused by the control option. By
doing this, the impact of each control option was
estimated in terms of its effectiveness for improving
air quality from various sectors (i.e., vehicles,
industries, road dust, domestic cooking, open burning
and other area sources). Table 4 presents the
modeling results on efficacy of individual control
option.
Out of 10 vehicular control options, it is
noted that control options1 and 2 are having same
potential in reduction of PM10. However control
option- 2 (introduction of Euro 6) could be preferred
over control option 1 (introduction of Euro 5), as
control option- 2 will additionally reduce NOx by
55% and hydrocarbons (HCs) + NOx by 26% [37,
40]. This is to be noted that HCs are precursors of
ozone formation. From the evaluation results, it could
be inferred that the best 4 control options in terms of
reduction efficiency of PM10 concentration for
vehicular sources are: (i) control option- 9; banning
of 15 year old private vehicles (30.3% in 5th
year and
23.4% in 10th
year), (ii) control option- 7; retro
fitment of diesel particulate filter (30.3% in 5th
year
and 27.9% in 10th
year), (iii) control option- 4; CNG
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2287 | P a g e
to commercial and public vehicles (14.7% in 5th
year
and 40.3% in 10th
year), and (iv) implementation of
Euro 6 (7.4% in 10th
year). It is to be noted that the
potential in reduction of PM10 levels by these control
options are not the same for the 5th
and 10th
year. The
reason could be due to the fact that the growths of
vehicles are different for different categories of
vehicles.
Among the options meant for industries,
most effective options for reduction of ambient PM10
levels are: (i) control option- 12; introduction of
particulate control system (98.5% in the 5th
year and
10th
year), and (ii) control option- 11; industry fuel
change to natural gas (74.1% in the 5th
and 10th
year).
For the sources of domestic cooking, control
option- 14; use of LPG in place of solid and liquid
fuel, could be the effective in reducing ambient PM10
levels from this source by 38.8% in 5th
and 54.5% in
10th
year.
Among the control options for reductions of
ambient PM10 levels from road dust, the best two
control options are: (i) control option- 20; sweeping
and watering of roads in mechanized means (48.7%
in 5th
year and 45.7% in 10th
year), and (ii) control
options- 18; conversion of unpaved roads to paved
roads (14.5% in 5th
year and 23.6% in 10th
year).
Table 3. Summary of model performance measures PM10 at monitoring sites
Particulars Sampling sites* Overall
IIT VN GN DN CG AHM RD
No. of valid observations 26 24 27 24 28 23 22 174
24 hr average observed monitored ambient
concentration (µgm-3
)
Mean 196 224 247 396 298 284 241 269
SD 45 62 49 127 98 100 85 81
24 hr average predicted ambient concentration
(µgm-3
)
Mean 104 125 151 293 189 184 145 170
SD 47 59 66 143 72 88 62 77
Percentage of prediction (%) 53 56 61 74 63 65 60 63
Fractional error (FB) 0.61 0.58 0.48 0.29 0.45 0.43 0.49 0.48
Normalized mean square error (NMSE)
0.62 0.43 0.35 0.28 0.32 0.31 0.34 0.38
Coefficient of correlation (r) 0.64 0.73 0.68 0.78 0.76 0.69 0.77 0.72
Index of agreement (d) 0.49 0.61 0.68 0.79 0.69 0.67 0.66 0.66
SD for standard deviation; *Details of Sampling sites (Figure 1): IIT- IIT Kanpur, VN- Vikashnagar, GN-
Govindnagar, DN- Dadanagar, CG- Colonelganj, AHM- AHM hospital, RD- Ramadevi square
Figure 4. Correlation plot for observed and predicted 24 hr average values of PM10 concentrations in the base
year
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2288 | P a g e
(a)
(b)
Figure 5. (a) Kanpur city with critical grids with their identities in the process of ISCST3 modeling for
examining efficacies of control options of PM10 pollution load over the city, (b) PM10 predictions in critical
grids with Emissions BAU for the base year, the future 5th
year and the future 10th
year
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Table 4. Modeling results of evaluation on efficacy of control options for the 5th
and 10th
year
Control
Option
no.*
Pertinent
source
Brief of control
option
Situation in the 5th
year (average of
10 critical grids)
Situation in the 10th
year(average
of 10 critical grids)
Conc.
5th
year
BAU
(µgm-3
)
Conc.
5th
year
control
(µgm-3
)
%
reduction
in ambient
air conc.
Conc.
10th
year
BAU
(µgm-3
)
Conc.
10th
year
control
(µgm-3
)
%
reduction
in ambient
air conc.
1 Vehicle Euro 5 119.6
NA
NA 184.0 133.6 7.4
2 Vehicle Euro 6 119.6 NA NA 184.0 133.6 7.4
3 Vehicle Electric vehicles 119.6 113.5 5.1 184.0 173.3 5.8
4 Vehicle CNG 119.6 102 14.7 184.0 109.8 40.3
5 Vehicle Bio-diesel 119.6 110.8 7.4 184.0 171.1 7.0
6 Vehicle DOC Retro fitment 119.6 112.5 5.9 184.0 166.5 9.5
7 Vehicle DPF Retro fitment 119.6 94.1 21.3 184.0 132.6 27.9
8 Vehicle I and M 119.6 114.8 4.0 184.0 173.3 5.8
9 Vehicle Ban of 15 year old 119.6 83.4 30.3 184.0 140.9 23.4
10 Vehicle Public transport 119.6 114.1 4.6 184.0 174.5 5.2
11 Industry Natural gas as fuel 45.2 11.7 74.1 45.2 11.7 74.1
12 Industry PCS introduction 45.2 0.7 98.5 45.2 0.7 98.5
13 Industry Shifting to outside 45.2 22.3 50.7 45.2 0.0 100.0
14 Domestic Use of LPG 83.5 51.1 38.8 95.1 43.3 54.5
15 DG sets I and M 4.0 3.3 17.5 4.6 3.9 15.2
16 DG sets No power-cut 4.0 0.0 100.0 4.6 0.0 100.0
17 Construct Better practice 0.1 0.05 50.0 0.2 0.09 55.0
18 Road dust Unpaved to paved 68.9 58.9 14.5 81.9 62.6 23.6
19 Road dust Brick wall paving 68.9 63.7 7.5 81.9 60.4 26.3
20 Road dust S and W 68.9 37.4 48.7 81.9 44.5 45.7
21 Open
burning
Strict ban 14.0 9.3 33.6 39.4 0.0 100.0
*
For details of options and their implementation scheme, refer Table 1; % reduction is calculated based on
individual source; NA is for not applicable, as the implementation of Euro 5 and Euro 6 can be possible from the
8th
year from the base year; Construct for construction activities; Conc. for concentration; BAU conc. is the
ambient levels of PM10 from the individual source without implementing the control option; the control conc. is
the ambient levels of PM10 from the individual source with implementing the control option
3.4 Development of control scenarios
All twenty one control options were
evaluated for their effectiveness in section 3.3. The
following control options, showing less that 7%
reductions were treated as ineffective: options- 3, 5,
6, 8, 10, 15 and 19 (Table 1). As shifting of all
industries outside the city was not agreed by the city
authorities, therefore, control option- 13 was
considered as infeasible. We did not consider control
option- 17 further in the iteration process, as the
contribution of this source (better construction) to
ambient PM10 levels was negligible.
The twelve effective and feasible control
options (1, 2, 4, 7, 9, 11, 12, 14, 16, 18, 20 and 21)
were selected for scenario formations. This selection
method was done as per the modeling outputs. It was
considered that implementation of all twelve control
options may be cost prohibitive, therefore,
combinations of eight options were considered for
scenario development; considering less than eight
options were not sufficient to attain air quality
standards [37]. Finally, four control scenarios were
proposed (Table 5). It is to be noted that scenario- 4
is quite different than other three scenarios. The
purpose of scenario-4 was to assess the achievement
in reduction of ambient PM10 levels by applying the
control measures to only vehicular sources and to
keep the remaining sources as per their usual growths
(i.e., no control measures for other sources). These
four control scenarios were evaluated for their
effectiveness in reduction of ambient PM10 levels by
ISCT3 modeling for critical grids in the study area.
Based on the results of the evaluation of scenarios, it
could be concluded that control scenario- 3 is the
most promising combination of options in reducing
ambient PM10 levels in the study area (ambient PM10
reduction by 40% in the 5th
year and 51% in the 10th
year).
A qualitative cost analysis was done for
three control scenarios for their cost effectiveness.
Scenario-4 was not considered, as the potential in
reduction of PM10 was less than 20% and this
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scenario is concerned with the control of vehicular
pollution only. The difference between scenarios 1
and 2 is CNG as vehicle fuel (control option- 4) and
DPF in vehicle (control option- 7). The scenario- 1
will be relatively cost-effective compared to
scenario- 2, as the installation of DPF could be
costlier than the installation of CNG kit (readily
available in the Indian market). It is to be noted that
CNG outlet infrastructure already exists in the city
and no new installations are required for CNG usages
for vehicles [41].
Compared to Scenario 1, Scenario 3 is
certainly more effective in terms of PM10 reduction
potential and it is expected to be cost-effective as
well because the old industries cannot change the
technology to use natural gas as fuel. Any fuel
change (e.g., coal to natural gas) will require huge
investment (piping network, storage, compressors
etc.) [42]. Therefore, the best option for the industry
to reduce PM10 is through particulate control filters
(e.g., cyclones, scrubbers) compared to complete
change to the new fuel.
Table 5. Possible control scenarios as combination of control options
S.
No.
Scenario Combinations of control options (brief of specific
control options)
% reduction of
ambient PM10
in the 5th
year*
% reduction of
ambient PM10
in the 10th
year*
1. Scenario-1 Control options: 1, 4, 9, 11, 14, 18, 20 and 21 (Euro 5,
CNG to vehicles, ban of 15 year old vehicles, natural
gas as industrial fuels, LPG in domestic cooking,
unpaved to paved roads, sweeping and watering of
roads, ban on open burning)
37 47
2. Scenario-2 Control options: 1, 7, 9, 11, 14, 18, 20 and 21 (Euro 5,
DPF retro fitment to vehicles, ban of 15 year old
vehicles, natural gas as industrial fuels, LPG in
domestic cooking, unpaved to paved roads, sweeping
and watering of roads, ban on open burning)
38 45
3. Scenario-3 Control options: 2, 4, 9, 12, 14, 18, 20 and 21 (Euro 6,
CNG to vehicles, ban of 15 year old vehicles, PCS
industries, LPG in domestic cooking, unpaved to paved
roads, sweeping and watering of roads, ban on open
burning)
40 51
4. Scenario-4 (Control options- 2, 7 and 9, as control measures) + (no
control on the sources of control options- 12, 14, 18, 20
and 21):
vehicular control by introducing Euro 6, DPF retro
fitment to vehicles and ban of 15 year old vehicles
15 19
*Values are based on the average of 10 critical grids; it is to be noted that the scenarios are proposed based
on the iterations with combinations of control options depending on the viabilities concurrent options to be
implemented by the management.
3.5 Air quality status in the study area with
proposed scenario
If one decides to implement control
scenario- 3, it is important to reexamine the
improvements in air quality with the objective to see
if standards are attained both in the 5th
and 10th
year.
To assess the spatial distribution of the ambient
levels of PM10 with implementation of control
scenario- 3, ISCST3 modeling was performed by
treating centers of 85 grids as receptors. With the
implementation of scenario- 3, it has been observed
that the air quality will improve dramatically, but it
would fall short of achieving air quality standards for
PM10 in 1/4th
of area for the 5th
year and 10th
year.
Therefore additional efforts are required to prepare
specific control strategies to reduce the emission
further. Vehicles, road dust and domestic cooking are
the important sources in the 5th
and 10th
year.
Therefore, vehicular pollution can be reduced further
by 50 percent which can be done by restricting entry
of vehicles to 50 percent in these grids (of non-
attaining the standard). The entry restriction of the
vehicles can be achieved by allowing odd number of
vehicles on the first day and even number of vehicles
on the next day and repeating the cycle. This can be
achieved by education and some spot checking. It is
expected that the reduction in 50% vehicle loads will
reduce the road dust by more than 50 percent of the
earlier emission (estimated by Eq (4) which is
dependent on number of vehicles on the road). The
reduced numbers of vehicles also eliminate traffic
congestion and lead to smooth traffic flow. De
Vlieger et al. [43] have reported that during traffic
congestions, fuel consumption increases by 20–45%.
It was also assumed that construction of flyovers at
road-railway intersections (15 numbers in the study
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2291 | P a g e
area) will help in time saving of about 20 percent and
can result in reduction of PM10 by 30% (possible
range; 20–45%). If proper inspection and
maintenance of vehicles are taken into account, 10–
20% fuel efficiency can be achieved [44]. We have
assumed 15% PM10 reduction if strict compliance for
inspection and maintenance of older vehicles is
enforced. Additionally, if uninterrupted power supply
is maintained, no DG sets will be used and their
contribution to PM10 will be zero, this is expected to
happen in the 5th
year as power supply and generation
will improve. Conversion of all solid fuels and
kerosene into LPG by the 5th
year, will further reduce
emission by 50% in 5th
year and 25% in 10th
from the
domestic cooking (control- 14; Table 1). Complete
ban on open burning from the 5th
year, which will
further enable 50% emission reduction (control
option 21; Table 1).
In summary, the additional options to be
augmented with the control secanrio-3 to arrive at
‗the proposed scenario‘ include: (i) restriction of
vehicles to the areas having non-attainment of air
quality standard, (ii) construction of flyovers in
traffic congested areas, (iii) strict compliance for
inspection and maintenance of older vehicles, (iv)
adequate supply of uninterrupted power (v) complete
conversion of solid fuel and kerosene into LPG for
domestic cooking, and (vi) complete ban on refuse or
garbage burning.
ISCST3 modeling for 24 hr average PM10
concentrations at 85 receptor locations was
performed given that the above control options and
scenario 3 are enforceable. Figure 6 shows the
spatial distributions of PM10 concentration (µgm-3
) in
winter season for the 5th
year BAU, 5th
year control
and 10th
year BAU and 10th
year control. It could be
observed that (Figures 6b and d) the proposed control
scenario will ensure compliance of 24 hr air quality
standards of PM10 (100 µgm-3
) in future.
IV. CONCLUSIONS
A GIS-based emission inventory of PM10 for
the base, 5th
and 10th
year was developed for the City
of Kanpur, India. The PM10 emission of 11.4 ton day-
1
of the base year will increase by a factor of 1.5 in
the 5th
year and by a factor of 2.2 in the 10th
year. If
no control measures are taken, vehicles will be the
major emitters in the 5th
year (4.1 ton day-1
; 24% of
total PM10) and in the 10th
year (7.3 ton day-1
: 29% of
total PM10). Next to vehicles, domestic cooking (20%
in 5th
year and 22% in 10th
year) and road dust (17%
in 5th
year and 20% in 10th
year) will be among the
top contributors to PM10 in the future.
This study has proposed a time-sensitive
particulate control scenario for implementation to
achieve compliance of 24 hr average air quality
standard. For this purpose, twenty one control
options (e.g., introduction of Euro 6 to vehicles, use
of natural gases as fuels for industries, use of LPG as
domestic cooking fuel etc.) were considered for
evaluation. The effectiveness of each control option
in reducing the PM10 concentration was assessed
through ISCST3 model. Different control scenarios
were developed as a combination of several control
options. A scenario comprising control options- (i)
implementation of Euro 6 for vehicles, (ii) CNG to
commercial and public vehicles, (iii) banning of 15
year old private vehicles, (iv) particulate control
systems in industries, (v) LPG for domestic cooking,
(vi) converting unpaved roads to paved roads, (vii)
sweeping and watering of roads and (viii) ban on
open burning, was found to be the most effective.
Implementation of this control scenario will
substantially improve the air quality in the 5th
and
10th
year. However, in certain areas, air quality
standard for PM10 could still be violated. Therefore,
additional options should become part of particulate
control scenario which include: (i) restriction of
vehicles to the areas having non-attainment of air
quality standard, (ii) construction of flyovers in
traffic congested areas, (iii) strict compliance for
inspection and maintenance of older vehicles, (iv)
adequate supply of grid power to ensure no power
failure, (v) complete conversion of solid fuel and
kerosene into LPG for domestic cooking, and (vi)
complete ban on refuse or garbage burning.
With all these control options (the scenario
along with additional control options), the spatial
distributions of 24 hr average PM10 concentrations
were predicted over the city. The study finally
concludes that the proposed time-sensitive control
scenario will be able to reduce the ambient PM10
levels, so that the 24 hr average air quality standard
will be attained in the future 5th
year and 10th
year.
V. ACKNOWLEDGEMENTS
We acknowledge the Central Pollution
Control Board, Delhi for the financial support of the
project (Grant No: B- 30062/1/05 (SA)/PCI-I). We
thank Mrs. Pranati Behera, Department of Civil
Engineering, Indian Institute of Technology Kanpur,
India for assistance in preparing this manuscript.
15. Sailesh N. Behera, Jayprakash Rout, Mukesh Sharma And Prashant Gargava / International
Journal of Engineering Research and Applications (IJERA) ISSN: 2248-9622
www.ijera.com Vol. 3, Issue 4, Jul-Aug 2013, pp.2278-2294
2292 | P a g e
(a) future 5th
year BAU (b) future 5th
year Control
(c) future 10th
year BAU (d) future 10th
year Control
Figure 6. Spatial distribution of PM10 concentration (µgm-3
) in winter season over the study areas under (a)
future 5th
year BAU, (b) future 5th
year control with proposed control scenario, (c) future 10th
year BAU, (d)
future 10th
year control with proposed control scenario
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