The permissible level of pollutants or toxic substances in the atmosphere, which affects adversely when exposed to 7-8 hours is called:
A
TLV
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B
BOD
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C
COD
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D
all of the above
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Solution
The correct option is A TLV The permissible level of pollutants or toxic substances in the atmosphere, which affects adversely when exposed to 7-8 hours is called TLV (Threshold Limit Value).