Which size of particulate matter causes the g | vedclass

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(C) According to the Central Pollution Control Board $(CPCB)$,particulate matter of size $2.5 \ \mu m$ or less in diameter (known as $PM_{2.5}$) is re

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$2.5 \ \mu m$ or less

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(C) According to the Central Pollution Control Board $(CPCB)$,particulate matter of size $2.5 \ \mu m$ or less in diameter (known as $PM_{2.5}$) is responsible for causing the greatest harm to human health.These fine particulates can be inhaled deep into the lungs and can cause respiratory problems,inflammation,and damage to the lungs,and they can even enter the bloodstream.

Which size of particulate matter causes the greatest harm to human health?

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