Discuss the effects of thermal pollution on physiochemical quality of water.
Answers
Thermal pollution is the degradation of water quality by any process that changes ambient water temperature. A common cause of thermal pollution is the use of water as a coolant by power plants and industrial manufacturers. When water used as a coolant is returned to the natural environment at a higher temperature, the sudden change in temperature decreases oxygen supply and affects ecosystem composition. Fish and other organisms adapted to particular temperature range can be killed by an abrupt change in water temperature (either a rapid increase or decrease) known as "Thermal shock."
Urban runoff—stormwater discharged to surface waters from roads and parking lots—can also be a source of elevated water temperatures.
heated water discharged into aquatic environment change physical chemical properties of water such as density visocity ,surface tention, solubility of gases and steam pressure . the influence of heating on aquatic eco system is ambiguous , and at different level of heating it may be positive or negative