Question

Differentiate between the primary and secondary pollutants. Explain how these pollutants are harmful for humans and environment

Answer 1

Explanation:

Primary pollutants

These persists in the form in which they are added to the environment .

eg DDT, CO

Secondary pollutants

These are formed by chemical reaction among primary pollutants.

eg PAN, Ozone, photochemical smog , London smog.

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