Question

How many primary pollutants are there?

(a) Three

(b) Five

(c) Seven

(d) Nine

This question was addressed to me in class test.

My doubt is from History, Types and Sources of Air pollution’s in chapter Environmental Pollution of Energy Management

Answer 1

Right option is (b) Five

The explanation is: Pollutants that are emitted from identified sources which are produced by both by natural events and by manmade activities are known as primary pollutants. The five primary pollutants are carbon oxides, nitrogen oxides, sulphur oxides, volatile organic compounds and suspended particulate matter.