The Major Causes And Dangers Of Thermal Pollution

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Thermal pollution is the changing or altering the temperature of a natural body of water by either adding water that has been cooled or heated. The water body may be a river, lake stream, pond or oceanic environment. It may also be defined as the heating or cooling of water from a natural source by industrial or anthropogenic activities which is ejected back to the source. This can cause lowering or depletion of oxygen level and is dangerous to the environment especially marine environments. Thermal pollution is caused by numerous activities including runoff from paved surfaces, water used as cooling agents in factories, soil erosion deforestation. The major sources however are Nuclear power plants, Coal fired plants, Industrial effluents, Domestic sewage, Hydroelectric Power. Nuclear power plants activities which drainage from hospitals, research institutions, nuclear experiments and explosions, discharge a large amount of heat that is not used in the different processes as well as with traces of toxic radionuclides which are emitted water streams. The emissions from nuclear reactors and processing installations can also be blamed decreasing or increasing of the normal temperatures of water bodies. The operations of power reactors and nuclear fuel processing units constitutes the major contributor of heat in the aquatic environment. Coal fired power plants also constitute a major source of thermal pollution. The condenser coils in the plants are cooled with water which

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