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Which of the following is not an example of Secondary Air Pollutant?

Which of the following is not an example of Secondary Air Pollutant? Correct Answer Halogen Compounds

Explanation:

Secondary air pollutant

1) Sulphuric acid (H2SO4)

2) Formaldehydes

3) Photochemical smog

4) Ozone

5) Peroxy Acetyl – nitrate (PAN)

Primary air pollutant

1) SO2

2) CO & CO2

3) NO, NO2

4) Volatile organic compound

5) Suspended Particulate Matter (SPM)

6) Radioactive compound

7) Halogen compound

Important Points

(i) Secondary air pollutant are those which are formed by the reaction of one or more primary air pollutant either with each other or with water vapour in the presence of sun light. 

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