Question

Define permissive noise level.

Answer 1

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In atmospheric sounding and noise pollution, ambient noise level (sometimes called_____ background noise level, reference sound level, or room noise level) is the background sound pressure level at a given location, normally specified as a reference level to study a new intrusive sound source.


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Answer 2

Explanation:

Noise pollution is generally defined as regular exposure to elevated sound levels that may lead to adverse effects in humans or other living organisms. According to the World Health Organization, sound levels less than 70 dB are not damaging to living organisms, regardless of how long or consistent the exposure is.