Db Laeq

Some articles on db, laeq, db laeq:

Environmental Impact Of Aviation In The United Kingdom - Environmental Impact - Local Environmental Impact
... measurements of noise near airports take an average sound level, measured in decibels (dB), over a 16 hour day, and are expressed as an LAeq figure ... Officially, 57 dB LAeq is the threshold at which noise levels become disturbing, 63 dB LAeq represents moderate disturbance, whilst 69dB LAeq represents high disturbance ... the area around the airport affected by noise levels of 57 db LAeq and above fell by 60 per cent, whilst the number of people similarly affected fell by 51 per cent ...