Equivalent Sound Level

Equivalent Sound Level means the level, in decibels, of the mean-square A-weighted sound pressure during a stated time period, with reference to the square of the standard reference sound pressure of 20 micropascals. It is the level of the sound exposure divided by the time period and is abbreviated as Leq.

Source

40 CFR § 201.1

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Scoping language

As used in this part, all terms not defined herein shall have the meaning given them in the Act:

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