Restricted Hours Noise Monitoring Results              
             
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
07-May-13 22:40 22:45 Cloudy 65.7 66.7 63.4 No outdoor construction noise Mainly traffic noise - 24 0.5 RION- NL31 (S/N 00603867) RION - NC73 (S/N 10997142)
07-May-13 22:45 22:50 Cloudy 63.9 65.2 62.9 -
07-May-13 22:50 22:55 Cloudy 63.7 65.4 60.9 -
07-May-13 22:40 22:55 Cloudy 64.5 65.8 62.5 -
12-May-13 09:30 09:35 Fine 66.0 67.5 64.1 No outdoor construction noise Mainly traffic noise - 25 0.5 RION- NL31 (S/N 00603867) RION - NC73 (S/N 10997142)
12-May-13 09:35 09:40 Fine 65.9 67.6 63.9 -
12-May-13 09:40 09:45 Fine 66.1 67.6 64.5 -
12-May-13 09:30 09:45 Fine 66.0 67.6 64.2 -
21-May-13 20:20 20:25 Cloudy 66.7 68.2 64.6 No outdoor construction noise Mainly traffic noise - 24 0.3 RION- NL31 (S/N 00603867) RION - NC73 (S/N 10997142)
21-May-13 20:25 20:30 Cloudy 66.9 68.5 65.3 -
21-May-13 20:30 20:35 Cloudy 66.8 68.4 65.2 -
21-May-13 20:20 20:35 Cloudy 66.8 68.4 65.0 -
26-May-13 16:40 16:45 Cloudy 65.1 66.8 62.3 No outdoor construction noise Mainly traffic noise - 28 0.3 RION- NL31 (S/N 00603867) RION - NC73 (S/N 10997142)
26-May-13 16:45 16:50 Cloudy 65.4 66.8 63.4 -
26-May-13 16:50 16:55 Cloudy 64.8 66.5 62.1 -
26-May-13 16:40 16:55 Cloudy 65.1 66.7 62.6 -
  16:25 16:30 Cloudy   67.1 63.3 No outdoor construction noise Mainly traffic noise -   0.3 RION- NL31 (S/N 00603867) RION - NC73 (S/N 10997142)
00-Jan-00 16:30 16:35 Cloudy   67.9 64.0 -
00-Jan-00 16:35 16:40 Cloudy   68.7 64.3 -
00-Jan-00 16:25 16:40 Cloudy   67.9 63.9 -
      Min. 63.7                  
      Max. 66.9