Air Pollution

1. AIR POLLUTION
Presented By- Anmol Jain
Class- IX-G
Roll No.5

2. DEFINE
Air pollution is a mixture of solid particles and gases in the air.
The substances which causes air pollution are known as
pollutants

3. TYPES OF AIR POLLUTION
Outdoor Air Pollution
Smog
Particulates
Acid Rain
Greenhouse Gases
Indoor Air Pollution

4. Causes
• Natural Sources
Smoke that come from wildfires, volcanoes, methane, dust
• Human Sources
Power plants and automobiles, fumes, burning wood stoves, fireplaces
and furnances

5. Pollutants
Carbon Dioxide
Carbon Monoxide
Sulphur Dioxide
Nitrogen Dioxide

7. Primary Mechanism
Formation of VOC
Biological generation of VOC
Formation of liquid aerosol droplets
Anthropomorphic generation of particulate aerosol
Biological formation of particulate aerosol
Particulate aerosol formation

8. Secondary Mechanism
Condensation
Adsortion
Nucleation

9. Effects