Question

Sounds above what level are considered hazardous noise pollution?

• A. Above 80 dB
• B. Above 30 dB
• C. Above 150 dB
• D. Above 120 dB

Answer 1

The correct option is A Above 80 dB

Noise pollution is a physical form of pollution which affects the receiver directly. It is caused when loud disturbing sounds are produced from a source and spread into ambient atmosphere. Noise pollution occurs when the sound has a value of 80 dB (decibel). Hence, hazardous noise pollution occurs above 80 dB.

So, the correct answer is 'Above 80 dB'.