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
03-Jul-12 19:35 19:40 Fine 67.2 68.8 65.4 No outdoor construction noise Mainly traffic noise - 30 0.2 RION- NL31 (S/N 00603867) RION - NC73 (S/N 10997142)
03-Jul-12 19:40 19:45 Fine 68.5 70.1 66.4 -
03-Jul-12 19:45 19:50 Fine 66.8 68.7 64.4 -
03-Jul-12 19:35 19:50 Fine 67.6 69.2 65.5 -
08-Jul-12 11:26 11:31 Fine 65.5 66.7 63.2 No outdoor construction noise Mainly traffic noise - 30 0.3 RION- NL31 (S/N 00603867) RION - NC73 (S/N 10997142)
08-Jul-12 11:31 11:36 Fine 64.4 66.3 61.7 -
08-Jul-12 11:36 11:41 Fine 64.3 65.7 62.5 -
08-Jul-12 11:26 11:41 Fine 64.8 66.3 62.5 -
17-Jul-12 19:35 19:40 Fine 66.0 67.3 64.4 No outdoor construction noise Mainly traffic noise - 30 0.3 RION- NL52 (S/N 00710259) RION - NC73 (S/N 10997142)
17-Jul-12 19:40 19:45 Fine 65.6 66.9 64.0 -
17-Jul-12 19:45 19:50 Fine 65.5 67.5 62.8 -
17-Jul-12 19:35 19:50 Fine 65.7 67.2 63.8 -
22-Jul-12 09:34 09:39 Sunny 65.6 67.0 63.8 No outdoor construction noise Mainly traffic noise - 27 0.2 RION- NL52 (S/N 00710259) RION - NC73 (S/N 10997142)
22-Jul-12 09:39 09:44 Sunny 64.6 65.9 62.9 -
22-Jul-12 09:44 09:49 Sunny 64.5 66.3 62.3 -
22-Jul-12 09:34 09:49 Sunny 64.9 66.4 63.0 -
31-Jul-12 22:19 22:24 Fine 62.4 63.8 60.6 No outdoor construction noise Mainly traffic noise - 27 0.2 RION- NL52 (S/N 00710259) RION - NC73 (S/N 10997142)
31-Jul-12 22:24 22:29 Fine 63.7 64.8 61.6 -
31-Jul-12 22:29 22:34 Fine 62.3 64.0 60.4 -
31-Jul-12 22:19 22:34 Fine 62.8 64.2 60.9 -
      Min. 62.3                  
    Max. 68.5