As per the world health organisation (WHO) specification, the maximum permissibl

Question

As per the world health organisation (WHO) specification, the maximum permissible concentration (i.e., TLV) of particulate matter in air is __________ μg/m³.(μg-microgram)

Options:

A . 10

B . 90

C . 800

D . 750

Answer: Option B

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