Restricted Hours Noise Monitoring Results - Evening Time and  Daytime on Public Holiday      
                         
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-Sep-12 17:20 17:35 Sunny 64 66 62 No major construction works Traffic noise - 32 0.4 RION- NL52
(S/N 00710259)		 RION - NC73 (S/N 10997142)
09-Sep-12 15:32 15:47 Sunny 67 69 64 No major construction works Traffic noise - 29.5 0.5 B&K 2238  
S/N: 2385180		 B&K 4231   S/N: 3003246
16-Sep-12 13:50 14:05 Sunny 64 66 62 No outdoor construction noise Mainly traffic noise - 30 0.5 RION- NL52
(S/N 00710259)		 RION - NC73 (S/N 10997142)
30-Sep-12 13:28 13:43 Sunny 65 67 63 No outdoor construction noise Mainly traffic noise - 24.3 0.5 RION- NL52
(S/N 00710259)		 RION - NC73 (S/N 10997142)
Min. 64
Max. 67
Remark:  The data (2, 16 and 30 September) was provided by Contract No. DC/2007/23. Calibration certificates for the noise meter(s) and calibrator(s) used were included in the corresponding Monthly EM&A Report for this Contract.
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
11-Sep-12 21:46 22:01 Fine 65 67 62 No outdoor construction noise Mainly traffic noise - 33.6 0.2 RION- NL52
(S/N 00710259)		 RION - NC73 (S/N 10997142)
19-Sep-12 22:45 23:00 Fine 66 68 64 No outdoor construction noise Mainly traffic noise - 26.9 0.3 B&K 2238  
S/N: 2385180		 B&K 4231   S/N: 3003246
25-Sep-12 19:21 19:36 Fine 67 68 65 No outdoor construction noise Mainly traffic noise - 27 0.3 RION- NL52
(S/N 00710259)		 RION - NC73 (S/N 10997142)
Min. 64
Max. 67
[1] The data (M3_Evening Time) of 11 and 25 September were provided by Contract No. DC/2007/23. Calibration certificates for the noise meter(s) and calibrator(s) used were included in the corresponding Monthly EM&A Report for this Contract.