2. Air pollution
• Sources of air pollution
3. It is caused due to internal combustion of fuel
from the engines of vehicles.
5. Smoke released from factories and industries
causes air pollution.
7. Burning of solid waste causes air pollution
3. Measures to control air pollution
1. Maintenance and servicing of vehicles regularly.
3. Use of scrubbers in factories prevents air
pollution
5. Prevention of burning of solid waste.
7. Tree planting reduces air pollution.
4. Water pollution
• Sources of water pollution
3. Mixing of sewage water with drinking water
5. Washing of clothes, utensils etc on river banks
7. Harmful waste water released from factories
when mixed with river water causes water
pollution.
5. Measures to control water pollution
1. Time to time maintenance of drinking
water lines as well as sewage pipes.
3. Prevention of waste water mixing with
drinking water.
5. Recycling waste water for different
purposes.
6. Noise pollution
• Sources of noise pollution
3. Bursting of fire crackers in festivals and
ceremonies.
5. Unnecessarily sound created by the horns of
vehicles.
7. Loudspeakers used in parties and functions.
7. Measures to control noise pollution
1. Use of sound absorbers.
3. Implementing ban on use of fire
crackers.
5. Creating silence zones.
8. Soil pollution
• Sources of soil pollution
3. Excess use of fertilizers.
5. Dumping of solid wastes in open places.
7. Dumping of biomedical wastes.
9. Measures to control soil
pollution
1. Planting of trees reduces soil pollution.
3. Limited use of fertilizers.
5. Construction of proper dumping grounds.
