AIR POLLUTION

BIOLOGICAL EFFECTS OF AIRPOLLUTION

1.Smoke particles block the surface of the plants, and hence photosynthesis gets affected.

2.Carbon dioxide,nitrogen dioxide and sulphurdioxide, when mixed with water vapour comes down as Acid rain which has a detrimental effect on plants and animals.

3.Number of respirtory diseases such as bronchitis and asthma are aggravated by smoke filled air.

4.Unburnt hydrocarbons are cancer causing.

5.Nitrogen dioxide and sulphur dioxide irritate eyes, nose and lungs.

CONTROL OF AIR POLLUTION

1.Planting trees and maintaining parks and gardens may reduce air pollution and give good air.

2.Adulteration of petrols should be controlled.

3.Less use of coal and oil for running factories.

4.Nuclear tests have to be followed under controlled conditions.

5.Lead free petrol should be used in automobiles.

6.Strict vigil against leakage of poisonous gases in the gas factories