Working day-night typical stage, DNL or LDN: This measurement assesses the cumulative exposure to sound to get a 24-hour time period (Leq over 24 hrs) on the year, using a ten dB(A) penalty or body weight extra to nighttime noise measurements provided the amplified sensitivity to noise at nighttime. [thirteen] https://ricardoqyglo.wssblogs.com/31958822/the-definitive-guide-to-energy-efficiency