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
27-Dec-12 15:17 15:47 Fine 63.1 65.6 60.0 works in noise enclosure Road traffic noise N.A 18.6 <5 B&K 2238   S/N : 2381580 B&K 4231  S/N: 3003246
                           
Min. 61.4
Max. 64.6