Truly speaking, pure air never be there. Air will have mixing of foreign substance like industrial gases, dust, etc., at all times and at all places. It is the presence of foreign matters in the outdoor atmosphere in an excessive concentration which harmful to man or his environment, air pollution his injurious to the health of the community.
Sources of air pollution
1. Natural sources
2. Manmade sources.
Classification of air pollution
1. Based on origin
2. Based on bio-medical effect
Effect of air pollution
1. Effect on human beings
2. Effect on animals
3. Effect on plants
4. Effect on materials.
Control of air pollution
Prevention of determental effects on public control
Protection of plant and animal life
Protection of soiling and damage to property.
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