FAQ Answer

FAQ Answer

What is Leq?

The term Leq is shorthand for ‘equivalent continuous noise level’, which is a parameter that calculates a constant level of noise with the same energy content as the varying acoustic noise signal being measured. The Leq is an energy mean of the noise level averaged over the measurement period and often regarded as an average level. In the UK, the averaged A-weighted Leq, or LAeq (often abbreviated to ‘Leq’), for the 16-hour period 0700-2300 (local time), is used as the airport noise exposure index.


Environmental Factors