Under the Noise Pollution (Regulation and Control) Rules, 2000, a complaint regarding noise pollution can be made when the noise level exceeds the prescribed ambient noise standard by :
10 dB(A) or more
The Noise Pollution (Regulation and Control) Rules, 2000 prescribe ambient noise standards separately for industrial, commercial, residential and silence zones, and separately for day and night.
Rule 3 then fixes the threshold for a grievance: a complaint can be made to the designated authority when the noise level exceeds the applicable ambient standard by 10 dB(A) or more. Below that margin the rules do not treat the excess as an actionable nuisance.
The 10 dB(A) figure is not arbitrary. Because the decibel scale is logarithmic, a rise of 10 dB(A) represents a tenfold increase in sound intensity and is heard by a listener as roughly a doubling of loudness, so it marks a genuinely perceptible breach rather than a marginal fluctuation.
Hence, the answer is 10 dB(A) or more.
Similar Questions
Which of the following international conventions deals with the elimination or reduction of Persistent Organic Pollutants (POPs) ?
With reference to the Bio-Medical Waste Management Rules, 2016, which of the following discarded items are classified as contaminated recyclable waste under the Red category ?
I. Intravenous tubes and sets
II. Catheters
III. Urine bags
IV. Syringes without needles
V. Needles from used syringes
VI. Contaminated glass vials
Select the correct answer using the code given below :
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Which of the following is NOT a water pollutant?
