Restricted Hours Noise Monitoring Results[1]                
                           
Station NM4                        
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
05-Aug-11 06:00 06:05 Fine 61 63 59 No outdoor construction noise Mainly traffic noise - 32 0.2 RION- NL31 (S/N 00983400) RION - NC73 (S/N 10997142)
05-Aug-11 06:05 06:10 Fine 63 65 61 -
05-Aug-11 06:10 06:15 Fine 63 64 61 -
05-Aug-11 06:00 06:15 Fine 62 64 61 -
07-Aug-11 08:29 08:34 Fine 64 65 62 No outdoor construction noise Mainly traffic noise - 31 0.2 RION- NL31 (S/N 00983400) RION - NC73 (S/N 10997142)
07-Aug-11 08:34 08:39 Fine 64 66 62 -
07-Aug-11 08:39 08:44 Fine 65 67 63 -
07-Aug-11 08:29 08:44 Fine 64 66 62 -
17-Aug-11 06:40 06:45 Fine 64 65 61 No outdoor construction noise Mainly traffic noise - 31 0.3 RION- NL31 (S/N 00983400) RION - NC73 (S/N 10997142)
17-Aug-11 06:45 06:50 Fine 64 65 61 -
17-Aug-11 06:50 06:55 Fine 64 65 62 -
17-Aug-11 06:40 06:55 Fine 64 65 61 -
21-Aug-11 09:46 09:51 Sunny 64 66 61 No outdoor construction noise Mainly traffic noise - 31 0.2 RION- NL31 (S/N 00983400) RION - NC73 (S/N 10997142)
21-Aug-11 09:51 09:56 Sunny 64 65 62 -
21-Aug-11 09:56 10:01 Sunny 64 67 61 -
21-Aug-11 09:46 10:01 Sunny 64 66 61 -
30-Aug-11 23:00 23:05 Fine 63 64 61 No outdoor construction noise Mainly traffic noise - 31 0.2 RION- NL31 (S/N 00983400) RION - NC73 (S/N 10997142)
30-Aug-11 23:05 23:10 Fine 62 64 60 -
30-Aug-11 23:10 23:15 Fine 63 64 61 -
30-Aug-11 23:00 23:15 Fine 62 64 61 -
      Min. 61                  
      Max. 65                  
[1] The monitoring data on 5 and 17 August morning are for the restricted hour of previous day (4 and 16 August respectively)