Noise Pollution Level

There are a number of different noise criteria measurements used by local authorities to determine noise levels in the community.

Noise Pollution Level, LNP, takes into account two basic attributes of noise annoyance: the higher the level of noise, the greater the disturbance and the larger the variability of fluctuations in level, the more annoying it becomes. A variation of LAeqT which accounts for short-term variability in noise level.

For a gaussian distribution of dB(A) level, it is defined as:

See also: Community Noise Criteria, Fluctuation Strength, Office Noise Index.

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Subjects: Audio Noise & Vibration