Pollutant

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Definition

A substance discharged into water or the atmosphere which can cause harm to living organisms, ecosystems or the environment. Examples of pollutants include chemical waste, residues, vapours, smoke, etc.

Formation

Pollutants are formed during the combustion of fossil fuels and in many industrial processes such as smelting, roasting, incineration and other operations which release off-gases containing particulate matter or volatile chemicals, or generate liquid or solid waste containing toxic substances

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