Sources of water pollution :
There are following sources of water pollution :
1. Natural sources:
- Pathogens which include bacteria and other organisns.
- Faeces of organisms
- Remains of plants and animal.
- Minerals from mines etc.
2. Man-made sources :
- Domestic sewage like rotten fruits, soaps, detergents etc.
- Municipal sewage released from houses, public toilets, bathing etc.
- Industrial wastes.
- Industrial effluents.
- Agricultural discharge like fertilizers, pesticides etc.
Prevention of water pollution :
The following steps could be taken to prevent water pollution :
- Prohibition in bathing and washing of clothes in rivers and streams and also in discharging untreated or treated sewage in water bodies.
- Judicious use of pesticides and fertilizers.
- Re-use of water after treatment of waste water for irrigation and municipal purpose.
- Regular monitoring of water bodies.
- Use of waste water treatment plant in industries hospital etc.