Abstract:
Water is an essential element of earth's natural environment. All living
being depend on it, in one way or another. It is one of the most important sources for
drinking, irrigation and industrial purposes. Growing urbanization, rapid industrialization
without proper plan, excess use of chemical fertilizers, insecticides, pesticides in
agriculture field has deteriorated the quality of water, causing water pollution. In broad
perspective "Pollution" means such contamination of water or such alteration of the
physical, chemical or biological properties of water or such discharge of any sewage or
trade effluent or of any other liquid, gaseous or solid substance into water (whether
directly or indirectly) as may, or is likely to, create a nuisance or render such water
harmful or injurious to public health or safety, or to domestic, commercial, industrial,
agricultural or other legitimate uses, or to the life and health of animals or plants or of
aquatic organisms (Govt. of India, 1974).
