Restricted Hours Noise Monitoring Results -- Night time 
Station M8a, Near security room of Wah Lai House
 
Date Start Time End Time  Weather Noise level (dB(A)), 5 min Major Construction Noise Source(s) Observed Other Noise Source(s) Observed Remarks Temp. (°C) Wind Speed (m/s) Noise Meter Model / ID Calibrator Model / ID
Leq L10 L90
19-Jun-13 23:00 23:15 Fine 61.6 64.0 54.7 Tunnel worls Road Traffic noise from Shek Pai Wan Road and cars from residents of Wah Lai House Major noise source -- road traffic noise. 29.7 <5 B&K 2238   S/N : 2381580 B&K 4231  S/N: 3003246
Min. 61.6
Max. 61.6