Chapter 5:WATER POLLUTION

Water is a major component of our natural environment. Everything we do by way of exploiting or managing it ((Chapter 7) has impacts on the environment. Analysis of the impacts of water pollution thus presents a formidable task and considerable challenge. Silt and sand are by far the major water pollutants in terms of quantity. Production of biomass by aquatic organisms, soil erosion, and refuge discharge all contribute to this problem. Addition of salts and metals from highway, farm runoff and industrial activities also damage water quality. Toxic chemical wastes have become an increasing water pollution problem in industrialized countries, Chemicals from agricultural fields and industrial units