First slide

Air Pollution and its Control

Question

The diameter of particulate matter that causes greatest harm to human health is

Easy

A

≤ 2.5 μm
B

≤ 0.25 μm
C

≤ 1.0 μm
D

≤ 0.1μm

Solution

According to Central Pollution Control Board (CPCB), particulate size 2.5 micrometers or less in diameter (PM 2.5) are responsible for causing the greatest harm to human health.

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