Delhi Pollution Control Committee

Government of NCT of Delhi

CPCB Standards


CPCB Standards

Ambient Air Quality Standards In Respect of Noise
Area Code Category of Area Limits in dB (A) Leq
    Day Time Night Times
(A) Industrial area 75 70
(B) Commercial area 65 55
(C) Residential area 55 45
(D) Silence Zone 50 40
Note :-
Day time is reckoned in between 6.00 AM and 10.00 PM
Night time is reckoned in between 10.00 PM and 6.00 AM
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