Define pollutant and contaminant ?

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Detailed Solution

Pollutant: A substance released into environment due to natural human activity and effects adversely the environment is called pollutant.
Eg: SO₂, CO, Pb, Hg
Contaminant : A substance which is not present in nature, but released during human or natural activity and has an adverse effect on environment is called contaminant.
Eg: MIC

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