Rambaran Kumar and Dipak Prasad
Abstract
Growing population, intensive agriculture, climate change, water pollution and depleting natural water resources are the main factors of water scarcity in India. More than 80 percent of sewage water generated by human activities is discharged into rivers and oceans without any control, resulting in environmental pollution and greatly affecting human health. Eighty percent of diseases and 50 percent of child deaths worldwide are related to polluted water. Water plays an important role for living beings and humans. Therefore, regular water quality monitoring is considered a top priority for all countries in the world. Water quality monitoring not only helps countries assess and predict pollution, but also provides information for planning the sustainable use of water resources. Rivers are an important component of both urban and rural aquatic ecosystems, and rapidly increasing pollution in rivers seriously threatens the safety of these ecosystems. The degradation of surface water quality due to increasing pollution and climate change has become a serious concern worldwide. Such degradation threatens the use of water resources, especially drinking water supplies, and economic development.