CURRENT AFFAIRS

Detailed explanation-1: -The rules state that busy airports-a civil airport with more than 50, 000 aircraft movements per year (take-off or a landing) – should not exceed noise levels beyond 75 dB(A) Leq (decibels) during the day time (6am to 10pm) and 65 dBA during the night (10pm to 6am).

Detailed explanation-2: -According to the Committee on Noise Pollution Control, the noise pollution decibel limit permitted in residential areas is 45 dB at night and 55 dB during the day. Daytime is defined as 6:00 AM to 10:00 PM.

Detailed explanation-3: -Common Sources of Noise and Decibel Levels A whisper is about 30 dB, normal conversation is about 60 dB, and a motorcycle engine running is about 95 dB. Noise above 70 dB over a prolonged period of time may start to damage your hearing. Loud noise above 120 dB can cause immediate harm to your ears.

Detailed explanation-4: -Permissible noise level in India In industrial areas, the permissible limit is 75 dB for daytime and 70 dB at night. In commercial areas, it is 65 dB and 55 dB, while in residential areas it is 55 dB and 45 dB during daytime and night respectively.

Detailed explanation-5: -As per the ministry of Environment and Forest, Government of India, noise standard levels (ambient noise levels experienced due to vehicle at running stage) recommended (day time) for automobiles are 75 dB in industrial areas, 65 dB in commercial areas, 55 dB in residential areas and 50 dB in silence zones.