Restricted Hours Noise Monitoring Results [1]
Station NM1
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 21:20 21:25 Sunny 63.5 65.1 61.4 - Mainly traffic noise - 30 0.3 RION- NL31 (S/N 00603867) RION - NC73 (S/N 10997142)
03-Jul-12 21:25 21:30 Sunny 64.0 66.2 62.0 -
03-Jul-12 21:30 21:35 Sunny 63.8 65.9 61.8 -
03-Jul-12 21:20 21:35 Sunny 63.8 65.8 61.7 -
08-Jul-12 13:03 13:08 Sunny 65.3 67.1 62.4 Noise from nearby playground Mainly traffic noise - 30 0.3 RION- NL31 (S/N 00603867) RION - NC73 (S/N 10997142)
08-Jul-12 13:08 13:13 Sunny 66.5 68.2 62.8 -
08-Jul-12 13:13 13:18 Sunny 65.2 67.9 62.0 -
08-Jul-12 13:03 13:18 Sunny 65.7 67.8 62.4  
17-Jul-12 21:20 21:25 Fine 64.5 66.1 62.1 - Mainly traffic noise - 30 0.3 RION- NL52 (S/N 00710259) RION - NC73 (S/N 10997142)
17-Jul-12 21:25 21:30 Fine 64.7 66.2 62.3 -
17-Jul-12 21:30 21:35 Fine 64.2 67.0 62.0 -
17-Jul-12 21:20 21:35 Fine 64.5 66.5 62.1 -
22-Jul-12 13:30 13:35 Sunny 70.0 71.2 63.8 Noise from nearby playground Mainly traffic noise - 27 0.2 RION- NL52 (S/N 00710259) RION - NC73 (S/N 10997142)
22-Jul-12 13:35 13:40 Sunny 67.7 69.1 63.6 -
22-Jul-12 13:40 13:45 Sunny 69.2 70.8 63.6 -
22-Jul-12 13:30 13:45 Sunny 69.1 70.5 63.7 -
31-Jul-12 20:05 20:10 Fine 64.2 66.0 60.4 Noise from nearby playground Mainly traffic noise - 27 0.3 RION- NL52 (S/N 00710259) RION - NC73 (S/N 10997142)
31-Jul-12 20:10 20:15 Fine 64.0 65.9 66.2 -
31-Jul-12 20:15 20:20 Fine 63.5 65.7 60.2 -
31-Jul-12 20:05 20:20 Fine 63.9 65.9 63.2 -
      Min. 63.5                  
    Max. 70.0                  
[1] No class was held at the school during all of the monitoring sessions within the reporting month.