India Statistics

Kerala Noise Pollution Standards

Code Area/Zone Day Decibles
6:00am–10:00pm
Night Decibles
10:00pm–6:00am
A Industrial Area 75 70
B Commercial Area 65 55
C Residential Area 55 45
D Silence Zone
less than 100 meters around hospitals, educational institutions, courts, religious places or any other declared area
50 40

Source: Kerala State Pollution Control Board (pdf)