Daytime Noise Monitoring Results -- Normal weekday          
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
04-Oct-10 15:18 15:48 Sunny 66 67 64 Rock Excavation  N.A N.A 25.5 <5 B&K 2238   S/N : 2684503 B&K 4231  S/N: 2656516
12-Oct-10 13:10 13:40 Fine 68 72 61 Rock Excavation  N.A N.A 27.6 <5 B&K 2238   S/N : 2684503 B&K 4231  S/N: 2656516
18-Oct-10 10:40 11:10 Sunny 69 72 61 Operation of breaker N.A N.A 31.0 <5 B&K 2238   S/N : 2381580 B&K 4231  S/N: 2385180
28-Oct-10 09:33 10:03 Sunny 68 73 61 Loading activities N.A N.A 18.7 <5 B&K 2238   S/N : 2684503 B&K 4231  S/N: 2656516
00-Jan-00 - - - - - - - - - - - - -
00-Jan-00 - - - - - - - - - - - - -
      Min. 66                
      Max. 69