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Which of the following is a secondary air pollutant?
  • a)
    SPM
  • b)
    PAN
  • c)
    SO2
  • d)
    NO2
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Which of the following is a secondary air pollutant?a)SPMb)PANc)SO2d)N...
Peroxy Acetyl Nitrate is a secondary air pollutant whereas, Suspended Particulate Matter, SO2 and NO2 are primary air pollutants.
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