Water covers about 70% of the surface of the Earth. Water is an important resource for the people and the environment. Water is the basis of life, it makes up to 60-95 % of the total weight of any functioning living cell.

Though, 70% of earth's surface is covered with water only 0.00192% of the water is available for human consumption. Pollution of water affects drinking water, lakes, river and oceans all over the world. In most of the developing countries the major cause of death is consumption of polluted water. Water pollution affects all living species and also populations and the complete functioning of the ecosystem that lives in the waters.