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
14-Oct-12 15:00 15:15 Sunny 66.2 67.7 64.4 No outdoor construction noise Mainly traffic noise - 26 0.3 RION- NL31 (S/N 00603867) RION - NC73 (S/N 10997142)
28-Oct-12 13:38 13:53 Sunny 68.1 70.2 64.5 No outdoor construction noise Mainly traffic noise - 26 <5 B&K 2238   S/N: 2381580 B&K 4231   S/N: 3003246
Min. 66.2
Max. 68.1
Remark:  The data (14 October) 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
04-Oct-12 22:45 23:00 Fine 66 68 64 No outdoor construction noise Mainly traffic noise - 26 <5 B&K 2238   S/N: 2381580 B&K 4231   S/N: 3003246
09-Oct-12 20:43 20:58 Fine 65 67 63 No outdoor construction noise Mainly traffic noise - 28 0.3 RION- NL31 (S/N 00603867) RION - NC73 (S/N 10997142)
23-Oct-12 19:11 19:26 Fine 63 65 60 No outdoor construction noise Mainly traffic noise - 26 0.3 RION- NL31 (S/N 00603867) RION - NC73 (S/N 10997142)
25-Oct-12 22:45 23:00 Fine 65 66 63 No outdoor construction noise Mainly traffic noise - 25.8 <5 B&K 2238   S/N: 2381580 B&K 4231   S/N: 3003246
Min. 63
Max. 66
[1] The data (M3_Evening Time) of 9 and 23 October 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