Question

According to Central Pollution Control Board [CPCB] what size (in diameter) of particulate is responsible for causing greater harm to human health?

(1) 3.0 micrometers

(2) 3.5 micrometers

(3) 2.5 micrometers

(4) 4.0 micrometers

Answer 1

Answer (3) 2.5 micrometers

Sol. According to CPCB (Central Pollution Control Board), particulate less than 2.5 micrometers (in diameter) is responsible for causing greater harm to human health.