Air pollution occurs when gases, dust, fumes or odors exceed safe levels in the air. It can be outdoor or indoor pollution. Outdoor sources include smog, particulates, acid rain and greenhouse gases from natural phenomena as well as human activities like burning fossil fuels. Indoor sources include smoking wood stoves, fireplaces and furnaces. Major pollutants are carbon dioxide, carbon monoxide, sulfur dioxide and nitrogen dioxide. Air pollution has negative health and environmental impacts and effects climate, ecosystems, agriculture and more. Mitigation requires sustainable development, international cooperation, new technologies and individual efforts.

1. AIR POLLUTION
AND
POLLUTANTS
PRESENTED BY:-
SANU BISWAS
B- TECH (CE) ,4th YEAR,
26301319102

2. DEFINITION
 Occurs when the air contains
gases,dust,fumes or odor in harmful
amounts.
 It is when concentrated gases exceed
safe limits

3. TYPE OF AIR POLLUTION
 Outdoor Air Pollution
 Indoor Air Pollution
 Smog
 Particulates
 Acid Rain
 Greenhouse Gases

4. CAUSES
 Natural Sources
 Human Sources
e.g. smoke that comes from
wildfires,volcanoes,methane,du
st
e.g. power plants and
automobiles,fumes,burning wood
stoves, fireplaces,and furnaces

5. POLLUTANTS
 Carbon Dioxide
 Carbon Monoxide
 Sulfur Dioxide
 Nitrogen Dioxide

6. MECHANISM

7. PRIMARY MECHANISM
 Formation of VOC
 Biological generation of VOC
 Formation of liquid aerosol droplets
 Anthropomorphic generation of
particulate aerosol
 Biological formation of particulate
aerosols

8. SECONDARY
MECHANISM
 Condensation
 Adsorption
 Nucleation

9. EFFECTS
 Human Effects
 Environmental
Effects
e.g.diseases
 Acid Rain
 Eutrophication
 Haze
 Wildlife
 Ozone Depletion
 Crop and forest damage
 Global climate change

10. IMPACTS
 Climate System
 Health
 Economy
 Environment
 Ecosystem
 Forestry
 Agriculture

11. MITIGATION
Mitigation of Air Pollution:-
 Sustainable
development
 International
Convention and
treaties
 National and
international
funds,Eco-conversison
 New Technologies,
Recycling

12. CONCLUSION & RECOMMENDATIONS
 Air pollution has long been a
serious problem in the world.
 Without air,Earth would be unable
to sustain life.
 Spread the word.

13. THANK YOU