Presentation by Lyman Welch for the 2011 Great Lakes Restoration Conference Session titled "Emerging Contaminant Threats and the Great Lakes."
Chemical contaminants form a vast chemical soup in the Great Lakes, and from available data, we know exposure may be cause for concern. This workshop will discuss the threat of “emerging contaminants” in the Lakes, as well as give an overview of research, policy implications and recommendations for moving forward.
Presentation by Lyman Welch for the 2011 Great Lakes Restoration Conference Session titled "Emerging Contaminant Threats and the Great Lakes."
Chemical contaminants form a vast chemical soup in the Great Lakes, and from available data, we know exposure may be cause for concern. This workshop will discuss the threat of “emerging contaminants” in the Lakes, as well as give an overview of research, policy implications and recommendations for moving forward.
Multiple Use of Surface Water Resources and Bacteria Colonization of Water Bo...Editor IJCATR
Water samples collected along the water courses of surface water sources of domestic water supply in Ezinihite Mbaise were analyzed for bacterial species inventory and total viable count (TVC) using the multiple test tube technique and colony counters. The surface waters covered include Ariam River and other tributaries that constitute the bulk of surface water resources in the area. Eight species of bacteria including E-coli, staphylococcus aureus, salmonella, and fecal streptococci among others were identified. Total viable counts gave alarming growth levels when compared o the standards as set by the world health organization (WHO). The microbial population explosion in the river is attributable to the multiple activities within and around the river also the uses including wash off from abattoirs carrying abattoir wastes directly into the river, domestic wastes dumped along the recharge path, others include in stream fermentation of food stuff and general laundry point for any for clothes, automobiles. All these make sufficiently available to enhance microbial growth. Surface water use should be monitored to ensure sustainability and proper management of watershed will control this trend of colonization of public water supply sources and in turn control the trends in water borne infections.
Two of the charter members of The Long Island Clean Water Partnership, The Citizen's Campaign For The Environment, and The Group For The East End, offer this overview of the state of Long Island's waters -- what is polluting them and what we can do about it. The CCE's Adrienne Esposito and the GFTEE by Bob DeLuca.
Long Island gets its drinking water from the ground. Whatever we do on the surface eventually makes it into the aquifer, and into our drinking water, our rivers and bays.
The largest issue is nitrates from septic tanks, from the 200+ small sewage treatment plants, and from fertilizer, both residential and commercial leaching into the ground water, and then to our bays, where they trigger massive algal blooms -- brown tide, red tide, rust tide, blue green algae. These blooms have already destroyed much of our bay's habitats, resulting in a collapse of the shellfish and finfish population. To reverse this situation, we must impose much stricter limits on how much nitrogen can enter into our ground water from the plants, farms, and from the 500,000 septic tanks that dot Long Island.
Another major threat to Long Island water is VOCS (volatile organic chemicals). While there are 254 superfund sites on Long Island, the largest source of these VOCs are household products -- cleaners, paint strippers, aerosols. 100,000 tons of household hazardous waste is disposed of improperly every year in New York.
A further threat is the 117 pesticides now found in our drinking water. Even when banned, they remain in our environment for decades.
Finally, the improper disposal of household pharmaceuticals means that these drugs are entering into our ecosystem, with effects unknown. We must stop flushing or throwing out unused prescriptions, but dispose of them only at designated county locations.
In all, there are a number of things we can do now to help LI become sustainable for future generations: Push for new technologies and new policies that would limit nitrogenous waste from our septic and sewer systems. Stop using high nitrogen lawn and agricultural fertilizers. Dispose of your household waste properly. Any chemical you use at home will end up in the ground water unless disposed of properly. Don't pour oils, grease, and chemicals down the drain. Use green, friendly home cleaning products.
Finally, since the major contributor to Long Island's water problems has been overdevelopment (without the requisite infrastructure to support it), we need to protect what green spaces we have left.
Microbiological quality of drinking water Mirko Rossi
Lecture on microbiological quality methods for drinking water for the faculty of Veterinary Medicine, University of Helsinki; Course in Environmental Health
Health Effects- Unconventional Natural Gas Development and Production (“FRACK...Tiffany Blackden
Ann Bristow shared this science based presentation on fracking in Maryland at the Garrett County Commissioner's Meeting on March 17, 2015. Fracking in Garrett County is restricted until October, 2017, when the moratorium is lifted, and the state will permit fracking. Now is the time to get involved and alert law makers to the fact that the risks are immense, and we are NOT willing to be collateral damage.
DEVELOPMENT OF MATHEMATICAL MODEL TO PREDICT THE TRANSPORT OF E.COLI IN A NAT...IAEME Publication
Development of mathematical model to predict the rate of microbial depositions (E.coli) in a natural pond has been carried out. The models were developed to monitor the rate of concentration at different periods, with respect to the length of the pond at various sample station. Results of the theoretical values were compared with the experimental analysis. The analysis was thoroughly done to determine the physiochemical parameters of the pond. Microbial traces were found from the experimental analysis at different periods up to hundred days. The developed model compared favourably well with the experimental values. The values explain the rate of microbial growth and level of lag phase condition. The growth rate of the microbes were found to be higher because there is high deposition of substrate for growth and energy, while at some periods it degrades showing that the substrates have reduced in concentration including the inhibition from the pH. In some cases when the microbes developed lag phase condition it may be as a result of other environmental factors. Finally, the growth rates are between fifty and hundred days, showing that there is constant regeneration of the microbes including other environmental factors.
Detection Of Escherichia Coli, An Indicator Of Feacal Contamination, In Drink...IOSR Journals
The detection of Escherichia coli as an indicator of faucal contamination in drinking water sources in Amassoma town, a host Community of the Niger Delta University, Bayelsa State in the Niger Delta of Nigeria, was carried out to determine their suitability for drinking. Result obtained showed mean total coliform bacterial counts of 2.05 x103 cfu/ml for borehole water, 1.25x103 cfu/ml for well water and 1.0x103 for pipe borne water. The mean count of faecal coliform was 2.1x103 cfu/ml for borehole water, 4.5x10 cfu/ml for well water and 1.0x10 cfu/ml for pipe borne water. The faecal coliform identified was Escherichia coli. Sources of contamination were found to be septic tanks, waste dump sites and periodic flooding of the area, being a typical wetland environment. It was concluded that water from the different sources studied in Amassoma did not meet the world health Organization (WHO) standard for drinking water. This study has therefore shown the need for continuous monitoring of our water supply systems.
Akvo - the control of legionella bacteria in bakery water systemsMatt Tudge
The control of legionella bacteria in bakery water systems code has been approved by the health and safety commission with the consent of the secretary of state. It gives practical advice on how to comply with the law.
Multiple Use of Surface Water Resources and Bacteria Colonization of Water Bo...Editor IJCATR
Water samples collected along the water courses of surface water sources of domestic water supply in Ezinihite Mbaise were analyzed for bacterial species inventory and total viable count (TVC) using the multiple test tube technique and colony counters. The surface waters covered include Ariam River and other tributaries that constitute the bulk of surface water resources in the area. Eight species of bacteria including E-coli, staphylococcus aureus, salmonella, and fecal streptococci among others were identified. Total viable counts gave alarming growth levels when compared o the standards as set by the world health organization (WHO). The microbial population explosion in the river is attributable to the multiple activities within and around the river also the uses including wash off from abattoirs carrying abattoir wastes directly into the river, domestic wastes dumped along the recharge path, others include in stream fermentation of food stuff and general laundry point for any for clothes, automobiles. All these make sufficiently available to enhance microbial growth. Surface water use should be monitored to ensure sustainability and proper management of watershed will control this trend of colonization of public water supply sources and in turn control the trends in water borne infections.
Two of the charter members of The Long Island Clean Water Partnership, The Citizen's Campaign For The Environment, and The Group For The East End, offer this overview of the state of Long Island's waters -- what is polluting them and what we can do about it. The CCE's Adrienne Esposito and the GFTEE by Bob DeLuca.
Long Island gets its drinking water from the ground. Whatever we do on the surface eventually makes it into the aquifer, and into our drinking water, our rivers and bays.
The largest issue is nitrates from septic tanks, from the 200+ small sewage treatment plants, and from fertilizer, both residential and commercial leaching into the ground water, and then to our bays, where they trigger massive algal blooms -- brown tide, red tide, rust tide, blue green algae. These blooms have already destroyed much of our bay's habitats, resulting in a collapse of the shellfish and finfish population. To reverse this situation, we must impose much stricter limits on how much nitrogen can enter into our ground water from the plants, farms, and from the 500,000 septic tanks that dot Long Island.
Another major threat to Long Island water is VOCS (volatile organic chemicals). While there are 254 superfund sites on Long Island, the largest source of these VOCs are household products -- cleaners, paint strippers, aerosols. 100,000 tons of household hazardous waste is disposed of improperly every year in New York.
A further threat is the 117 pesticides now found in our drinking water. Even when banned, they remain in our environment for decades.
Finally, the improper disposal of household pharmaceuticals means that these drugs are entering into our ecosystem, with effects unknown. We must stop flushing or throwing out unused prescriptions, but dispose of them only at designated county locations.
In all, there are a number of things we can do now to help LI become sustainable for future generations: Push for new technologies and new policies that would limit nitrogenous waste from our septic and sewer systems. Stop using high nitrogen lawn and agricultural fertilizers. Dispose of your household waste properly. Any chemical you use at home will end up in the ground water unless disposed of properly. Don't pour oils, grease, and chemicals down the drain. Use green, friendly home cleaning products.
Finally, since the major contributor to Long Island's water problems has been overdevelopment (without the requisite infrastructure to support it), we need to protect what green spaces we have left.
Microbiological quality of drinking water Mirko Rossi
Lecture on microbiological quality methods for drinking water for the faculty of Veterinary Medicine, University of Helsinki; Course in Environmental Health
Health Effects- Unconventional Natural Gas Development and Production (“FRACK...Tiffany Blackden
Ann Bristow shared this science based presentation on fracking in Maryland at the Garrett County Commissioner's Meeting on March 17, 2015. Fracking in Garrett County is restricted until October, 2017, when the moratorium is lifted, and the state will permit fracking. Now is the time to get involved and alert law makers to the fact that the risks are immense, and we are NOT willing to be collateral damage.
DEVELOPMENT OF MATHEMATICAL MODEL TO PREDICT THE TRANSPORT OF E.COLI IN A NAT...IAEME Publication
Development of mathematical model to predict the rate of microbial depositions (E.coli) in a natural pond has been carried out. The models were developed to monitor the rate of concentration at different periods, with respect to the length of the pond at various sample station. Results of the theoretical values were compared with the experimental analysis. The analysis was thoroughly done to determine the physiochemical parameters of the pond. Microbial traces were found from the experimental analysis at different periods up to hundred days. The developed model compared favourably well with the experimental values. The values explain the rate of microbial growth and level of lag phase condition. The growth rate of the microbes were found to be higher because there is high deposition of substrate for growth and energy, while at some periods it degrades showing that the substrates have reduced in concentration including the inhibition from the pH. In some cases when the microbes developed lag phase condition it may be as a result of other environmental factors. Finally, the growth rates are between fifty and hundred days, showing that there is constant regeneration of the microbes including other environmental factors.
Detection Of Escherichia Coli, An Indicator Of Feacal Contamination, In Drink...IOSR Journals
The detection of Escherichia coli as an indicator of faucal contamination in drinking water sources in Amassoma town, a host Community of the Niger Delta University, Bayelsa State in the Niger Delta of Nigeria, was carried out to determine their suitability for drinking. Result obtained showed mean total coliform bacterial counts of 2.05 x103 cfu/ml for borehole water, 1.25x103 cfu/ml for well water and 1.0x103 for pipe borne water. The mean count of faecal coliform was 2.1x103 cfu/ml for borehole water, 4.5x10 cfu/ml for well water and 1.0x10 cfu/ml for pipe borne water. The faecal coliform identified was Escherichia coli. Sources of contamination were found to be septic tanks, waste dump sites and periodic flooding of the area, being a typical wetland environment. It was concluded that water from the different sources studied in Amassoma did not meet the world health Organization (WHO) standard for drinking water. This study has therefore shown the need for continuous monitoring of our water supply systems.
Akvo - the control of legionella bacteria in bakery water systemsMatt Tudge
The control of legionella bacteria in bakery water systems code has been approved by the health and safety commission with the consent of the secretary of state. It gives practical advice on how to comply with the law.
Presentation summarizes perchlorate health effects, exposure assessment via dietary intake, drinking water standards in USA, remediation technologies, and environmental forensics.
What is potable water
Purification process to get potable water
Other water purification methods
How to purify water to potable water in wild
FAQ’s about potable water
Sources of water, Assessment of domestic and industrial requirement, Impurities in
water, Indian standards for drinking water, Water borne diseases and their control.
Nearly all water in the world contains contaminants, even in the absence of nearby pollution-causing activities
Many dissolved minerals, carbon compounds, and microbes find their way into drinking water as it comes in contact with air and soil
When pollutant and contaminant levels in drinking water are high, they may affect household routines and be detrimental to human health
The only way to ensure that your water supply is safe is to have a periodic laboratory water quality analysis done on your drinking water. Hach India is the leading provider of high end water quality analysis equipment in india
Clean Water & Sanitation for All: UNSDG # 6 by Nicholas Boutin, Maya McAndrews, Matthew Mosher, and Emily Price, Bristol County Agricultural High School
PUZZLED BY POINT OF USE FILTERS?
Michael Castro, MPH, Director of Healthcare Services
Why are point-of-use filters necessary for case investigations, outbreaks and high-risk units? Get practical information on developing a POU water filtration preparedness plan, a review of considerations for selection, and installation and deployment of microbiological water filtration during an outbreak.
Flexible Endoscopes.pdf Risks associated with reprocessing flexible endoscopesTalal Albudayri
Reprocessing Flexible Endoscopes
Objectives
Risks associated with reprocessing flexible endoscopes
Causes of contamination and infection
Gaps in current reprocessing standards
Establish scientific rationale and evidence requirements for
enhancing safe practices
— Hospitals could be the source of pollution that must be taken into account in a general approach to health and environmental risk assessment. This study is part of the characterization of hospital liquid waste in a region in Morocco, whose objective is to assess their physicochemical, bacteriological and toxicological quality. The physicochemical analyzes carried out on 144 samples taken during one year showed a great fluctuation of some parameters such as: BOD5, COD, MES, PH, T°, as well as an important bacteriological load: Total coliforms, E coli, faecal Streptococci, pathogenic germs such as: Salmonella, Staphylococcus, 20% multi-resistant, virulent germs of emerging nature such as: Pseudomonas aeroginosa, and trace metal elements such as: mercury and copper that exceed the threshold of acceptability. At the end of this study, it turned out that hospital effluents are heavily loaded with pollutants. We therefore hope, in the light of the results provided by this study, to have generated a real awareness of the competent authorities on strengthening and improving the treatment of hospital liquid effluents such as developed countries, as the impact of these effluents on human and environmental health is harmful and can spread emerging diseases.
Evaluation of biological and physicochemical risk of hospital liquid waste in...Agriculture Journal IJOEAR
— Hospitals could be the source of pollution that must be taken into account in a general approach to health and environmental risk assessment. This study is part of the characterization of hospital liquid waste in a region in Morocco, whose objective is to assess their physicochemical, bacteriological and toxicological quality. The physicochemical analyzes carried out on 144 samples taken during one year showed a great fluctuation of some parameters such as: BOD5, COD, MES, PH, T°, as well as an important bacteriological load: Total coliforms, E coli, faecal Streptococci, pathogenic germs such as: Salmonella, Staphylococcus, 20% multi-resistant, virulent germs of emerging nature such as: Pseudomonas aeroginosa, and trace metal elements such as: mercury and copper that exceed the threshold of acceptability. At the end of this study, it turned out that hospital effluents are heavily loaded with pollutants. We therefore hope, in the light of the results provided by this study, to have generated a real awareness of the competent authorities on strengthening and improving the treatment of hospital liquid effluents such as developed countries, as the impact of these effluents on human and environmental health is harmful and can spread emerging diseases.
Degradation of Nevirapine and Trimethoprim from Aqueous Solutions using Selec...Agriculture Journal IJOEAR
Together with pharmaceutical residues, personal care products encompassing prescription drugs, fragrances, and cosmetics have been detected in groundwater and other aquatic environments, hence compromising the quality of water. Their classification as micropollutants is due to their antibacterial resistance potential, persistence, and ecotoxicity. Biodegradation has been identified as a potential mechanism in their removal. The focus of this study focus was bioaugmentation; (Bacillus subtilis, Escherichia coli, Staphylococcus aureus, and Pseudomonas aeroginosa) to enhance the degradation of Nevirapine and Trimethoprim in model aqueous solutions. A liquid chromatography-tandem mass spectrometer (LC-MS/MS) was used to determine the pharmaceuticals. The efficacy of the bacterial strains to degrade selected drugs was evaluated by making the two drugs the sole source of energy and carbon. From the experimental data, the highest percentage biodegradation was recorded; Pseudomonas aeroginosa (86 %) and Staphylococcus aureus (79 %) for TMP and NVP respectively.
The Multi-barrier Approach to Address Water Quality and Disease PreventionMadelyn Skinner
How can you eliminate waterborne hospital acquired infections (HAIs) by choosing the right water treatment? Popular chemical treatments, like monochloramine, cause harmful byproducts and have little effect. Learn about copper silver ionization, and how the multi-barrier approach protects the people in your facility. Get introduced to the CDC and ASHRAE 188 and learn how to follow ethical practices.
14. Time for 90% Die-Off of Pathogens in Water Note: Helicobacter pylori can survive 30 days, Crypto > 100 days
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17. Risk Based Intake Water Thresholds Oct. 2008 Organism Type Average finished drinking water conc. (#/L) Average log water treatment removal & inactivation Estimated average intake water concentration threshold (#/L) Entamoeba coli Bacteria 0.000000625 5 (99.999%) 0.0625 Salmonella Bacteria 0.0013 5 (99.999%) 130 Cryptosporidium Protozoa 0.003 3 (99.9%)** 0.075* Giardia Protozoa 0.00000675 5 (99.999%) 0.675 Echovirus 12 Virus 0.0000685 5 (99.999%) 6.85 Polio I Virus 0.0000151 5 (99.999%) 1.51 Polio I Virus 0.00191 5 (99.999%) 191 Polio III Virus 0.000000265 5 (99.999%) 0.0265 Rotavirus Virus 0.000000222 5 (99.999%) 0.0222
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19. Reported Concentrations of Cryptosporidium in Wastewater Effluent LT2 Cutoff Potential Effluent Limit Oct. 2008
20. Ranges of STP Discharge & Streamflow: LT2ESWTR Thresholds Intake has Bin 2 Potential Intake has outbreak Potential 5.2 MGD 52 MGD 0.5 MGD
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Editor's Notes
Using the varying decay rates published for various bacteria, viruses, and protozoa under specific conditions it can take more than 3 weeks for 90% of the organisms to die off
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