This document discusses air pollution, including its composition, effects, and methods of analysis and control. It describes the major air pollutants like carbon monoxide, sulfur dioxide, nitrogen oxides, hydrocarbons and particulate matter. Methods for determining these pollutants include infrared spectroscopy, gas chromatography, and chemiluminescence. Air pollution has severe health impacts and is monitored using various instruments. Pollution can be controlled by modifying combustion sources, using low-sulfur fuels, and removing particles through precipitators. Several case studies of air pollution disasters are also presented.
PM is a complex mixture of air borne particles that differ in size, origin and chemical composition, all of which are <10 µm in size.
US EPA described PM pollution as ‘mixture of mixtures’.
PM is among the most harmful of all air pollutants.
Lab manual for Air Pollution Sampling and Analysis.
This laboratory manual is useful to environmental engineers, scientists, undergraduate and graduate students, chemists and environmental field engineers. The manual has been prepared as per the US EPA and IS standards
AIR POLLUTION CONTROL course material by Prof S S JAHAGIRDAR,NKOCET,SOLAPUR for BE (CIVIL ) students of Solapur university. Content will be also useful for SHIVAJI and PUNE university students
PHOTOCHEMICAL FORMATION OF SMOG
Photochemical Reactions in Atmosphere
What is Smog ?
Formation of Photochemical smog
Probable Mechanism for Smog formation
PM is a complex mixture of air borne particles that differ in size, origin and chemical composition, all of which are <10 µm in size.
US EPA described PM pollution as ‘mixture of mixtures’.
PM is among the most harmful of all air pollutants.
Lab manual for Air Pollution Sampling and Analysis.
This laboratory manual is useful to environmental engineers, scientists, undergraduate and graduate students, chemists and environmental field engineers. The manual has been prepared as per the US EPA and IS standards
AIR POLLUTION CONTROL course material by Prof S S JAHAGIRDAR,NKOCET,SOLAPUR for BE (CIVIL ) students of Solapur university. Content will be also useful for SHIVAJI and PUNE university students
PHOTOCHEMICAL FORMATION OF SMOG
Photochemical Reactions in Atmosphere
What is Smog ?
Formation of Photochemical smog
Probable Mechanism for Smog formation
Air Quality Sampling and Monitoring: Stack sampling, instrumentation and methods of analysis of SO2, CO etc, legislation for control of air pollution and automobile
pollution
Smog is a kind of intense air pollution, originally named for the mixture of smoke and fog in the air. Major cities around the world are experiencing the effects of air pollution.
more chemistry contents are available
1. pdf file on Termmate: https://www.termmate.com/rabia.aziz
2. YouTube: https://www.youtube.com/channel/UCKxWnNdskGHnZFS0h1QRTEA
3. Facebook: https://web.facebook.com/Chemist.Rabia.Aziz/
4. Blogger: https://chemistry-academy.blogspot.com/
Atmospheric particulate matter, Sources Of Particulate Matter
Industrial Sources of Particulate Emissions
Types Of Particulate Matter
Important Terms Describing Atmospheric Particles
Particulate Matter And Health
General Methods For Control Of Particulate Emissions
Particulate Collection Mechanism
History of Air pollution and episodes, Sources of air pollution and types, Introduction
to meteorology and transport of air pollution: Global winds, Headley cells, wind rose terrestrial wind profile, Effects of terrain and topography on winds, lapse rate, maximum mixing depths, plume rise
seminar on environmental issues, air pollution and controlsRahul Dubey
Today, large population pressure is exerting tremendous pressure on our natural resources. Pollution has led to an increase in the average temperature of our planet and threatens existence of life on earth.
Air Quality Sampling and Monitoring: Stack sampling, instrumentation and methods of analysis of SO2, CO etc, legislation for control of air pollution and automobile
pollution
Smog is a kind of intense air pollution, originally named for the mixture of smoke and fog in the air. Major cities around the world are experiencing the effects of air pollution.
more chemistry contents are available
1. pdf file on Termmate: https://www.termmate.com/rabia.aziz
2. YouTube: https://www.youtube.com/channel/UCKxWnNdskGHnZFS0h1QRTEA
3. Facebook: https://web.facebook.com/Chemist.Rabia.Aziz/
4. Blogger: https://chemistry-academy.blogspot.com/
Atmospheric particulate matter, Sources Of Particulate Matter
Industrial Sources of Particulate Emissions
Types Of Particulate Matter
Important Terms Describing Atmospheric Particles
Particulate Matter And Health
General Methods For Control Of Particulate Emissions
Particulate Collection Mechanism
History of Air pollution and episodes, Sources of air pollution and types, Introduction
to meteorology and transport of air pollution: Global winds, Headley cells, wind rose terrestrial wind profile, Effects of terrain and topography on winds, lapse rate, maximum mixing depths, plume rise
seminar on environmental issues, air pollution and controlsRahul Dubey
Today, large population pressure is exerting tremendous pressure on our natural resources. Pollution has led to an increase in the average temperature of our planet and threatens existence of life on earth.
Ambient Air Quality and Noise Assessment in Eleme Communities, Rivers State, ...GIFT KIISI NKIN
NKIN GIFT KIISI
Problems caused by ambient air pollution on human and the environment can be averted by steadily and strictly monitoring of the concentrations of outdoor pollutants. Human activities have triggered changes in the earths atmosphere. In this research, 7(Seven) selected Eleme communities, 4(four) zones in each community and 28(Twenty eight) sampling points in all locations were assessed for the concentrations of CO, SO2 , NO2 , NO, CO2 , SPM, O2 , noise level and as well Meteorological parameters using methods recommended by ASTM for air pollutants measurement and meteorological parameters. Findings of this research showed that, measured level of CO (1.00 - 43.00 ppm) at Akpajo, Aleto and Onne zone "B" exceeded the stipulated limit by NAAQS. Measured level of SO2 (0.00 - 1.30 ppm) at zone "B" and "D" in all locations were above permissible limit except in Alode and Ogale in which the concentrations of SO2 were 0.00 ppm through out the zones. NO2 (0.00 - 3.10 ppm) and NO (0.00 - 1.05 ppm) concentrations in zone "B" in all the
sampling locations exceeded the permissible limit by NAAQS except in Alode and Ogale. Aleto and Ogale zone "D" were also above limits. SPM(0.01 - 4.83 ppm) Levels in all locations and zones exceeded the limit given by W.H.O except in Ogale residential area. Noise Level (40.20 - 102 dBA) at Alesa, Aleto, Akpajo and Ebubu zone "B" were as well above
limits. In order to address the risk connected with the identified pollutants in the study area, more endeavour should be conveyed to the use of renewable energy and as well, cleaner air initiatives should be embarked upon.
Ambient Air Quality and Noise Assessment in Eleme Communities, Rivers State, ...GIFT KIISI NKIN
Problems caused by ambient air pollution on human and the environment can be averted by steadily and strictly monitoring of the concentrations of outdoor pollutants. Human activities have triggered changes in the earths atmosphere. In this research, 7(Seven) selected Eleme communities, 4(four) zones in each community and 28(Twenty eight) sampling points in all locations were assessed for the concentrations of CO, SO2 , NO2 , NO, CO2 , SPM, O2 , noise level and as well Meteorological parameters using methods recommended by ASTM for air pollutants measurement and meteorological parameters. Findings of this research showed that, measured level of CO (1.00 - 43.00 ppm) at Akpajo, Aleto and Onne zone "B" exceeded the stipulated limit by NAAQS. Measured level of SO2 (0.00 - 1.30 ppm) at zone "B" and "D" in all locations were above permissible limit except in Alode and Ogale in which the concentrations of SO2 were 0.00 ppm through out the zones. NO2 (0.00 - 3.10 ppm) and NO (0.00 - 1.05 ppm) concentrations in zone "B" in all the sampling locations exceeded the permissible limit by NAAQS except in Alode and Ogale. Aleto and Ogale zone "D" were also above limits. SPM(0.01 - 4.83 ppm) Levels in all locations and zones exceeded the limit given by W.H.O except in Ogale residential area. Noise Level (40.20 - 102 dBA) at Alesa, Aleto, Akpajo and Ebubu zone "B" were as well above limits. In order to address the risk connected with the identified pollutants in the study area, more endeavour should be conveyed to the use of renewable energy and as well, cleaner air initiatives should be embarked upon.
Keywords: Ambient Air; Pollution; Assessment; Eleme communities; Rivers Sate; Nigeria
Introduction
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This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
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TESDA TM1 REVIEWER FOR NATIONAL ASSESSMENT WRITTEN AND ORAL QUESTIONS WITH A...
Air pollution
1. ANALYTICAL CHEMISTRY
ENVIRONMENTAL CHEMICAL ANALYSIS
MODULE : POLLUTION
TOPIC : AIR POLLUTION
Dr. M. T. Bachute and R. R. Patil
Dept. of Chemistry,
KBP Mahavidyalaya, Pandharpur
2. OUTLINE
Introduction:-
Composition of atmosphere:-
A survey of reaction and method for:-
Determination of carbon monoxide:-
Determination of sulfur oxides:-
Determination of nitrogen oxides:-
Determination of hydrocarbons:-
Determination of particulates:-
8. WHAT IS POLLUTION?
Pollution is the introduction of harmful
substances or products into the
environment.
Classification of pollution:-
1.according to the environment:-
Air Pollution
Water Pollution
Soil Pollution
9. ACCORDING TO THE POLLUTANT:-
The pollution caused by pollutants may be of a
number of types:-
1.Radioactive Pollution
2.Noise Pollution
3.Thermal Pollution
4.Pesticide or Biocide Pollution
5.Oceanic Pollution
6.Chemical & Biological Pollution
7.Industrial Pollution
8.Population Pollution
12. 2.contaminants:-
A material which
does not occur
in nature, but it
is introduced by
human activity
in to the
environment.
e.g. chlorine gas
escaped from
tank near a
road.
13. 3.Receptor:- the medium which is affected by
a pollutant.
Example:- man is a receptor of photochemical
smog causing irritation of eyes and
respiratory tract.
15. A survey of reactions and
methods involved in determination
of :-
Carbon Monoxide
•colorless, odorless.
•produced when carbon does not
burn in fossil fuels.
•present in car exhaust.
•deprives body of O2 causing
headaches, fatigue, and impaired
vision.
16. DETERMINATION OF CO:-
IT IS DONE BY
1.NDIR SPECTROSCOPY:-
2.ATOMIC ABSORPTION
SPECTROSCOPY:-
3.INDIRECT SPECTROPHOTOMETRIC
METHOD:-
4.GAS CHROMATOGRAPHIC METHOD:-
18. Sulfur Dioxide
•produced when coal and fuel oil
are burned
•present in power plant exhaust
•narrows the airway, causing
wheezing and shortness of breath,
especially in those with asthma
19. DETERMINATION OF SULPHUR
DIOXIDE:-
IT IS DONE BY
1.MODIFIED WEST-GAEKE
SPECTROPHOTOMETRIC METHOD,
2.DASGUPTA , DECESARE AND ULLREY
SPECTROPHOTOMETRIC METHOD,
3.CONDUCTIMETRY,
4.AMPEROMETRY,
5.PULSED FLUORESCENE TECHNIQUE,
6.CHEMILUNESCENE METHOD (IN GAS
PHASE),
7.GAS CHROMATOGRAPHY.
20. IN THE GIVEN FIGURE SAMPLING TRAIN
EMPLOYED TO DRAW SAMPLE FROM AIR
1.Modified West
- Gaeke
spectrophotomet
ric Method:-
It is the standard
method for
monitoring of
0.005 to 5 ppm
sulphur dioxide
in ambient air
and petrol.
22. Nitrogen Dioxide
•reddish, brown gas
•produced when nitric
oxide combines with
oxygen in the atmosphere
•present in car exhaust
and power plants
•affects lungs and causes
wheezing; increases
chance of respiratory
infection
24. CHEMILUMINESCE
NCE METHOD:-
IT IS THE
STANDARD
METHOD FOR
MONITORING OF
NITROGEN OXIDE.
THE
PHENOMENON
RESULTS FROM
THE EMMISION OF
LIGHT FROM
ELECTRONICALLY
EXCITED
NITROGEN OXIDE
SPECIES.
25. Particulate Matter
•particles of different sizes and
structures that are released into the
atmosphere
•present in many sources including
fossil fuels, dust, smoke, fog, etc.
•can build up in respiratory system
•aggravates heart and lung disease;
increases risk of respiratory infection
26. THE TECHNIQUE IS USEFUL FOR
THE ANALYSIS OF ATMOSHERIC
PARTICULATE.
DETERMINATION OF
PARTICULATE
MATTER:-
IT IS DONE BY
X-RAY
FLUORESCENCE
IT IS BASED ON
THE PRINCIPAL
THAT WHEN A
SAMPLE IS
BOMBARDED WITH
ENERGETIC X-RAY
OR GAMMA
RADIATION .
IT GIVES RISE TO
SECONDARY
RADIATION , AS
ELECTRON DROP IN
TO VACANT
POSITION.
27. HYDROCARBON:-
CH4 is the major
naturally occurring
hydrocarbon emitted
in to the atmosphere.
Hydrocarbons are
removed from the
atmosphere by several
chemical and
photochemical reaction.
28. DETERMINATION OF
HYDROCARBON:-
IT IS DONE BY
1.GAS CHROMATOGRAPHIC METHOD,
2.AROMATIC HYDROCARBON IN EXHAUST ,
PETROL:
!.PROCEDURE FOR EXHAUST GAS:-
!!.PROCEDURE FOR PETROL:-
3.DETERMINATION OF LEAD IN PETROL BY
A.A.S.
29. DETERMINATION OF LEAD IN PETROL
BY A.A.S.:-
It is applicable only
when the nature of
antiknocking
additives or their ratio
in petrol is know.
It is applicable if the
nature of lead
additive is not know.
DIRECT METHOD INDIRECT METHOD
31. 2.EFFECT OF SULPHUR DIOXIDE:-
1.DECEMBER 1930- RIVER VALLEY , BELGIUM-
THERMAL INVERSION OF SULPHUR DIOXIDE-
38 ppm LEVEL- SEVERAL CATTLE KILLED
2.OCTOBER 1948- DONORA , PENNSYLVANIA,
USA- 40% POPULLATION AFFECTED -20-
DEATH- 2 ppm SULPHUR DIOXIDE.
3.December 1956,-london temperature inversion-
smog-1.3 ppm SULPHUR DIOXIDE- 350-400
DEATH.
32. EFFECT OF NITROGEN OXIDE:-
The effect of nitrogen oxide depend on the
concentration , period of exposure and the
solubility.
Inhalation of NO2 containing gases from burning
celluloid and nitro cellulose film lead to dead.
Two people died and five were injured when there
was accidental release of liquid NO2 while leading
in to a titan-ii intercontinental missile at rock , kanas
on august 24, 1978.
33. 4.EFFECT OF HYDROCARBON:-
Natural sources, particularly trees emit large
number of hydrocarbon.
Methane , the major naturally occurring
hydrocarbon is produced by bacteria in the
anaerobic decomposition of organic matter in water
,soil and sediment.
2CH2O CO2+CH4
Methane has mean residence time 3 to 7 year in
atmosphere.
34. 5.EFFECT OF PARTICULATE:-
Particulate mainly including soot, dust, fumes
and mist are potentially harmful for a variety of
material.
The extent and type of damage depends upon
the chemical composition and physical state of
the pollutant.
Extensive chemical damage occurs when the
particulates themselves are corrosive or when they
carry toxic substance along with them.
35.
36. •Combination of gases with water vapor and
dust
•Combination of words smoke and fog
•Forms when heat and sunlight react
gases (photochemical smog)
•Occurs often with heavy traffic, high
temperatures, and calm winds
37.
38. •1st smog related deaths were in
London in 1873; death toll 500
people; can you imagine how much
worse the atmosphere is now?!
•Limits visibility
•Decreases UV radiation
•Yellow/black color over cities
•Causes respiratory problems and
bronchial related deaths
39.
40.
41.
42.
43.
44. I.TCDD
ACCIDENT at
Seveso , ITALY
(JULY 1976)
AN
EXPLOSION
TOOK IN A
CHEMICAL
PLANT
MANUFACTURI
NG HERBICIDE
(2,4,5
TRICHLOROPH
ENOXY
ACETATE)
45. II.THE BHOPAL
DISASTAR:-
DATE:DEC. 3, 1984.
VENUE:BHOPAL,
MADHYA PRADESH ,
INDIA.
SOURCE:UNION
CARBIDE
FACTORY,
MANUFACTURER
OF CARBARYL
(CARBAMATE
PESTICIDE) USING
METHYL
ISOCYNAYE (MIC)
Home P2.jpg
47. IV. THE GULF
WAR AND
ENVIRONMENT
THE GULF WAR
(I) LASTED FOR 42
DAYS FROM 16TH
JANUARY 1991 TO
26TH FEBRUARY
1991.
THE PARTIES
WERE U.S.A. LED
MULTI-NATIONAL
FORCES UNDDER
THE BANNER OF
THE U.S.A. AND
IRAQ.
48. BIO-WARFARE AGENTS :-
THE 9/11 TERRORIST ATTACK ON WTO
TOWER IN NEW YORK SENT PANIC
WAVES ACROSS U.S.A. AND ALL OVER
THE WORLD.
A FEW MONTHS LATER ‘ ‘ ANTHRAX
PANIC ’’ ALSO GRIPPED U.S.A. AS A BIO-
WARFARE AGENT AND A FEW POISONIG
CASES WERE REPORTED.
49. Gaseous air pollutant Instrumental techniques
1.NOX , H2S IR SPECTROPHOTOMETRY ,
CHEMILUMINESCENE , VISIBLE AND
UV SPECTROMETRY.
2.SO2 AMPEROMETRY , CONDYCTIVITY,
GLC.
3. CO , CO2 NDIR , GC, AAS , FID.
4.HYDROCARBON GC-MS , IR
SPECTROPHOTOMETRY,IONISATION
ANALYSIS.S
5.PARTICULATES
# SILICATES , PAH3 CHROMATOGRAPHY.
# FLUORIDES , SULPHATES ELECTRON MICROSCOPY ,
POTENTIOMETRY.
Instrumental Techniques for monitoring
Air Pollutant:-
50. CONTROL OF AIR POLLUTION:-
I. CONTOL OF CO POLLUTION:-
1.MOIFICATION OF INTERNAL COMBUSTION
ENGINES TO REDUCE THE AMOUNT OF
POLLUTANTS FORMED DURING FUEL
COMBUSTION.
2.DEVELOPMENT OF EXHAUST SYSTEM
REACTORS WHICH WILL COMPLETE THE
COMBUSTION PROCESS.
3.DEVELOPMENT OF SUBSTITUTE FUELS FOR
GASOLINE.
4.DEVELOPMENT OF POLLUTION FREE POWER
SOURCES TO REPLACE THE INTERNAL
COMBUSTION ENGINE.
51. II. CONTROL OF SULPHUR DIOXIDE
POLLUTION:-
1.removal of SOx from fuel
gases.
2.removal of sulphur from fuel
burning.
3.use of low sulphur fuel.
Substitution of other energy
sources for fuel combustion.
52. III. CONTROL OF NITROGEN OXIDE POLLUTION
:-
Power plants emit about 50 to 100 ppm of (NOx)
, such emission can be reduced by 90% by two
stage combustion process.
1.the fuel (coal/oil/gas) is fired at a relatively
high temperature with substoichiometric
amount of air , say 90-95% of the stiochiometric
requirement .
2.fuel burnout is completed at a relatively low
temperature in excess air.
53. IV. CONTROL OF HYDROCARBON AND
PHOTOCHEMICAL POLLUTANT :-
O3 and PAN are secondary
pollutant , so their control
ultimately depends upon on the
control of their primary
precursors , hydrocarbon and
nitrogen oxide.
54. V. CONTROL OF PARTICULATE EMISSION:-
The removal of particulate matter from gas
streams is an essential step for air pollution
control.
There are four types of equipments used for this
purpose:
1. Gravity settling chamber,
2.Cyclone collector,
3.Wet scrubber,
4.Electrostatic precipitators.
55. I . CYCLONE
COLLECTOR:-
A GAS FLOWING IN
TIGHT CIRCULAR
SPIRAL PRODUCES A
CENTRIFUGAL
FORCE ON
SUSPENDED
PARTICLES ,
FORCING THEM TO
MOVE OUTWARD
THROUGH THE GAS
STREAM TO A WALL
WHERE THEY ARE
COLLECTED.
56. F=EQ WHERE
F=FORCE IN DYNES , TO WHICH THE PARTICLE ARE
SUBJECTED.
E=VOLTAGE GRADIENT .
Q=ELECTROSTATIC CHARGE ON THE PARTICLE.
II. ELECTROSTATIC
PRECIPITATORS :-
THESE ARE
BASED ON
THE
PRINCIPAL
THAT
AEROSOL
PARTICLE
ACQUIRE
CHARGE S
WHEN
SUBJECTED
TO AN
ELECTRICAL
FIELD.
57.
58. •Ride your bicycle.
•Tell your friends and family about
pollution.
•Make sure your parents get pollution
checks on their cars.
59.
60. FOR MORE INFORMATION
Further information on air pollution is available at:
http://www.healtheffects.org/
http://www.epa.gov/oar/particlepollution/
http://www.epa.gov/ttn/naaqs/standards/pm/s_pm_index.html
http://www.epa.gov/air/oaqps/greenbk/pindex.html
61. REFERENCE USED:
1.Environmental Chemistry-A.K.DE-NEW AGE
INTERNATIONAL PUBLISHERS.(5TH AND 7TH
EDITION),
2.ENVIRONMENTAL CHEMISTRY-H.KAUR,
3.OUR PLANET-UNEP MAGZINE , VOL.4,NO.2,
1992,NAIROBI,
4.FUNDAMENTAL OF AIR POLLUTION –
S.J.WILLIAMSON.