Restricted Hours Noise Monitoring Results -- Night time 
Station M5, Chuk Lam Ming Tong                  
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
06-Jan-11 23:00 23:15 Fine 62 63 51 Rock excavation Road traffic and helicoptor fly overhead N.A 14.2 <5 ONO SOKKI  LA-5110  S/N: 72700154 ONO SOKKI  SC-2110  S/N: 00461
19-Jan-11 23:00 23:15 Fine 63 63 49 Rock excavation Road traffic  N.A 14.2 <5 B&K 2238   S/N : 2684503 B&K 4231  S/N: 2656516
31-Jan-11 23:00 23:15 Fine 62 57 49 No major construction works Road traffic  N.A 13.1 <5 B&K 2238   S/N : 2684503 B&K 4231  S/N: 2656516
00-Jan-00 - - - - - - - - - - - - -
00-Jan-00 - - - - - - - - - - - - -
00-Jan-00 - - - - - - - - - - - - -
      Min. 62                
      Max. 63