Pollution: Causes, Prevention and Control

Pollution refers to the presence of contaminant and harmful agents in the environment. The severity of the harm caused by a pollutant depends on its chemical nature, concentration and persistence. Such pollutants can be man-made or natural. Anthropogenic contribution to pollution is particularly significant, especially due to combustion, construction, warfare and mining. Chemical plants, nuclear waste disposal, power plants, heavy industries, etc. release a huge amount of pollutants into th...