Restricted Hours Noise Monitoring Results -- Evening Time and  Daytime on Public Holiday
Station M5a, 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
12-May-13 14:29 14:44 Fine 64.2 67.3 56.8 Works in noise enclosure Road traffic noise at San Wan Drive  N.A 24.7 <5 B&K 2238  S/N : 2381580 B&K 4231  S/N: 3003246
Min. 64.2
Max. 64.2
Station M8, 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
                           
Min.  
Max.  
Restricted Hours Noise Monitoring Results -- Evening time           
Station M3, Kwan Yick building                  
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
02-May-13 22:45 23:00 Fine 67.8 69.3 64.7 No outdoor construction noise Mainly traffic noise - 19.3 <5 B&K 2238   S/N: 2381580 B&K 4231   S/N: 3003246
07-May-13 22:40 22:55 Cloudy 64.5 65.8 62.5 No outdoor construction noise Mainly traffic noise - 24.0 0.5 RION- NL31 (S/N 00603867) RION - NC73 (S/N 10997142)
21-May-13 20:20 20:35 Cloudy 66.8 68.4 65.0 No outdoor construction noise Mainly traffic noise - 23.5 0.3 RION- NL31 (S/N 00603867) RION - NC73 (S/N 10997142)
Min. 64.5
Max. 67.8
[1] The data (M3_Evening Time) of 7 and 21 May were provided by Contract No. DC/2007/23.
Restricted Hours Noise Monitoring Results -- Evening time 
Station M5a, 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
09-May-13 22:45 23:00 Fine 59.7 63.6 50.3 Works in tunnel Road traffic at San Wan Drive  According to contractor, general construction works was in process accordance to CNP. 25.2 <5 B&K 2238  S/N : 2381580 B&K 4231  S/N: 3003246
                           
Min. 59.7
Max. 59.7