5. AIR POLLUTION
• Definition:-
“Any undesirable change in
physical, chemical and biological
characteristics of pure air ,which are
adversely affect on human being, living
and non living material ”
6. Definition:-
“The change in natural quality and composition
of pure air ,due to addition of some toxic
gases , which are adversely affect on human
being, living and non living material”
7. Various gaseous pollutants
• CO2
• NO2
• SO2
• H2O
• HC
• Sulphur
• Pb
• O3
• CO
• CH4
• CFCs
• Particulate matters – Dust ,smoke,SPM ,RPM,Microbes,Pollens etc.
9. Classification of Air Pollutants:-
• Classification based on Origin of sources :-
1) Natural Sources -e.g. - Volcanic eruption, Dust Storms
2) Man made sources- e.g. Industries ,Vehicles
.Classification based on the addition in the
atmosphere:-
1) Primary pollutant - e.g. .-SO2,H2S, Hydrocarbon .
2) Secondary pollutant - e.g.-O3, PAN,
Photochemical Smog, Acid Rain
10. • Classification based on State of matter
1)Gaseous pollutants - e.g- SO2,H2S,CO,SOX,NOX
2) Particulate pollutants - e.g.-Dust, Soil, Pollen,
microbes
• Classification based on Chemical Composition
1) Inorganic air polluants - e.g- CO, CO2,NO2,H2
2) Organic air polluants - e.g.- Hydrocarbons, Aldehydes ,
Acetone
29. • 1) Effects on human being-
• Dizziness
• Eye irritation
• Nose irritation
• Throat irritation
• Headache
• Respictory track problem
• Cough
• Asthma
• Lung cancer
• Bronchitis
• Pneumonia
• Carboxyhemoglobin etc. (Due to Carbon Monoxide)
• Benzene , Polychlorinated biphenyl's ,Metals ,Heavy metals can cause
Mutation, Reproductive problem ,Cancer
• Arsenic , Silicon , Mercury ,Pb ,Zink affects on Vital organ of our body.
30. • Carbon Monoxide- Reduce oxygen capacity of
blood,heart pain, even death
• Nox – Irritation of lung,bronchitis and
pneumonia,difficulty in breathing
• HC – Eye irritation,coughing , carcinogenic
• Benzene – Cancer
• Lead – reduce the oxygen from the
blood,anemia,coma,brain damage affects central
nervous system,even death
•
31. SPM- Lung damage ,breathing problem asthma,respiratory
problem
SO2 – respiratory and cardiovascular problem,asthama and
bronchitis etc
Ozone – Asthma,coughing,sneezing,chest pain ,shortness
of breath
Cd- Cardiovascular diseases , hypertension ,kidney and
liver failure ,even death
Hg – Neurological damage ,birth defects
34. 3) Effects on non-living material-
•Metal corrosion,
•Degradation of paint, Stones , marbles,
monuments and statues ,Building materials
,Vehicles etc.
•And acidification of lake.
•SO2 affects leather and Fabric material
•Ozone cause cracks in Rubber
