Daytime Noise Monitoring Results -- Normal weekday          
                         
Station M3, Kwan Yick building(*)                  
Date Start Time End Time  Weather Noise level (dB(A)), 30 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
07-Dec-12 10:22 10:52 Fine 67.4 68.9 66.2 - Traffic Noise - 20 0.5 RION- NL31 (S/N 00603867) RION - NC73 (S/N 10997142)
13-Dec-12 14:22 14:52 Sunny 67.0 68.3 65.6 - Traffic Noise - 20 0.5 RION- NL31 (S/N 00603868) RION - NC73 (S/N 10997143)
19-Dec-12 10:24 10:54 Cloudy 66.9 68.2 65.5 - Traffic Noise - 19 0.5 RION- NL31 (S/N 00603868) RION - NC73 (S/N 10997143)
                           
Min. 66.9
Max. 67.4  
Station M5, Chuk Lam Ming Tong                  
Date Start Time End Time  Weather Noise level (dB(A)), 30 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-Dec-12 14:46 15:16 Fine 61.4 64.1 55.8 Operation of excavator Road traffic noise N.A 17.3 <5 B&K 2238   S/N : 2381580 B&K 4231  S/N: 3003246
10-Dec-12 13:34 14:04 Fine 63.7 66.4 57.3 Operation of excavator Road traffic noise N.A 18.3 <5 B&K 2238   S/N : 2381580 B&K 4231  S/N: 3003246
19-Dec-12 13:34 14:04 Fine 64.6 66.8 59.3 works in noise enclosure Road traffic noise N.A 15.1 <5 B&K 2238   S/N : 2381580 B&K 4231  S/N: 3003246
                           
Min. 61.4
Max. 64.6
Station M6a, Aegean Terrace                  
Date Start Time End Time  Weather Noise level (dB(A)), 30 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
03-Dec-12 10:59 11:29 Fine 54.4 56.9 48.8 Rock out N.A Free-field measurement, +3dB correction. 17.1 <5 B&K 2238   S/N : 2381580 B&K 4231  S/N: 3003246
13-Dec-12 10:19 10:49 Fine 59.7 62.4 50.0 operatorion of excavator N.A Free-field measurement, +3dB correction. 18.9 <5 B&K 2238   S/N : 2381580 B&K 4231  S/N: 3003246
19-Dec-12 10:38 11:08 Fine 56.5 58.5 49.8 operatorion of excavator N.A Free-field measurement, +3dB correction. 15.1 <5 B&K 2238   S/N : 2381580 B&K 4231  S/N: 3003246
27-Dec-12 14:28 14:58 Fine 59.3 61.6 54.2 Rock out N.A Free-field measurement, +3dB correction. 18.6 <5 B&K 2238   S/N : 2381580 B&K 4231  S/N: 3003246
Min. 54.4
Max. 59.7
Remark: Free-field measurement, +3dB correction.
Station M7a, Wah Ming House                  
Date Start Time End Time  Weather Noise level (dB(A)), 30 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
03-Dec-12 09:45 10:15 Fine 63.6 64.8 60.9 No major construction works N.A N.A 17.1 <5 B&K 2238   S/N : 2381580 B&K 4231  S/N: 3003246
13-Dec-12 09:14 09:44 Fine 60.7 62.1 58.1 No major construction works N.A N.A 18.9 <5 B&K 2238   S/N : 2381580 B&K 4231  S/N: 3003246
19-Dec-12 09:11 09:41 Fine 79.1 83.1 61.0 No major construction works operatorion of breaker N.A 15.1 <5 B&K 2238   S/N : 2381580 B&K 4231  S/N: 3003246
24-Dec-12 09:29 09:59 Fine 67.6 70.5 60.6 No major construction works operatorion of breaker N.A 13.3 <5 B&K 2238   S/N : 2381580 B&K 4231  S/N: 3003246
Min. 60.7
Max. 79.1
Station M8, Wah Lai House                  
Date Start Time End Time  Weather Noise level (dB(A)), 30 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-Dec-12 13:20 13:50 Fine 66.5 67.8 64.1 Operatorion of excavator Road Traffic noise from Shek Pai Wan Road  N.A 17.3 <5 B&K 2238   S/N : 2381580 B&K 4231  S/N: 3003246
10-Dec-12 09:38 10:08 Fine 70.5 73.0 65.5 Operatorion of excavator Road Traffic noise from Shek Pai Wan Road  N.A 18.3 <5 B&K 2238   S/N : 2381580 B&K 4231  S/N: 3003246
20-Dec-12 09:38 10:08 Fine 67.4 68.6 61.1 Operatorion of excavator Road Traffic noise from Shek Pai Wan Road  N.A 17.8 <5 B&K 2238   S/N : 2381580 B&K 4231  S/N: 3003246
27-Dec-12 13:23 13:53 Fine 68.7 71.1 64.6 Loading cement Road Traffic noise from Shek Pai Wan Road  N.A 18.6 <5 B&K 2238   S/N : 2381580 B&K 4231  S/N: 3003246
                           
Min. 66.5
Max. 70.5