Question

In Indian metropolitan cities like Delhi, major air pollutant is

• A. SPM
• B. $S{O}_x$
• C. $N{O}_x$
• D. CO and $C{O}_2$

Answer 1

The correct option is A SPM

The suspended particulate matter consists of all the solid and liquid particles that are found suspended in the air. These are dust, fly ash, soot, smoke, and liquid droplets. These are released from the construction sites, industrial smoke and vehicular emissions. In metropolitan cities like Delhi, the population pressure causes large scale construction and the heavy use of vehicles. The widespread migration for jobs also causes more and more industrialization. So, the SPM becomes a major air pollutant.

Hence, the correct answer is 'SPM'.