According to CPCB, which size of particulate matter are responsible for causing the greatest harm
to human health?
(
This question was previously asked in
Shift 09/06/2023 3:30 PM - 6:30 PM
A
2.5 micrometers or less in diameter
B
5.0 micrometers or more in diameter
C
10.0 micrometers or more in diameter
D
100 micrometers or more in diameter
Correct Answer
2.5 micrometers or less in diameter
Detailed Explanation
Particulate matter are very small and are not removed by precipitators. 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.
These fine particulates can be inhaled deep into the lungs and can cause breathing and respiratory problems.
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