Effects of Water Pollution: The effects of water pollution depend upon the nature of pollutants present in water. Pollutants bring about physical and chemical changes that make the water unfit for drinking and also harmful to the organisms present in it. Water is generally polluted in its sources as rivers, tanks, springs etc.

The major sources of water are:

1. Rain Water: Water from the initial two or three rains is polluted due to presence of dust particles in it. After two or three rounds the rain water becomes pure. It was a practice in Rajasthan to collect this water in the tanks to be used for the whole year. This practice of collecting the rain water by different means can solve the problem. 

2. Hand Pump Water: Hand pump water is best for drinking provided it is not heavy and acidic. 

3. Tank-Water: Water is collected in the tanks from rain or hills. It is used by human beings as well as animals and also for irrigation. The tank water is not pure. Hence, it should be boiled or sieved before using for drinking purposes. 

4. River Water: Rivers flow fast and their water remains in contact with air, hence at their source the water is pure but it becomes polluted due to the poisonous hilly vegetations and mixing of water from city drains. 

5. Well Water: Well water especially water from deep wells is pure. Its purity should be conserve