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
09-Apr-13 20:00 20:05 Cloudy 66.2 68.1 64.5 - Mainly traffic noise - 20 0.5 RION- NL31 (S/N 00603867) RION - NC73 (S/N 10997142)
09-Apr-13 20:05 20:10 Cloudy 65.4 67.3 64.1 -
09-Apr-13 20:10 20:15 Cloudy 66.6 68.2 64.5 -
09-Apr-13 20:00 20:15 Cloudy 66.1 67.9 64.4 -
14-Apr-13 09:30 09:35 Fine 67.4 69.4 64.5 - Mainly traffic noise - 22 0.5 RION- NL31 (S/N 00603867) RION - NC73 (S/N 10997142)
14-Apr-13 09:35 09:40 Fine 67.6 69.5 64.8 -
14-Apr-13 09:40 09:45 Fine 67.1 69.5 65.0 -
14-Apr-13 09:30 09:45 Fine 67.4 69.5 64.8  
23-Apr-13 19:10 19:15 Cloudy 64.6 66.8 60.8 - Mainly traffic noise - 22 0.5 RION- NL31 (S/N 00603867) RION - NC73 (S/N 10997142)
23-Apr-13 19:15 19:20 Cloudy 63.7 65.8 60.7 -
23-Apr-13 19:20 19:25 Cloudy 64.9 66.7 61.2 -
23-Apr-13 19:10 19:25 Cloudy 64.4 66.5 60.9 -
28-Apr-13 15:15 15:20 Fine 67.7 70.2 65.3 - Mainly traffic noise - 22 0.3 RION- NL31 (S/N 00603867) RION - NC73 (S/N 10997142)
28-Apr-13 15:20 15:25 Fine 67.5 70.0 64.6 -
28-Apr-13 15:25 15:30 Fine 68.4 71.1 65.4 -
28-Apr-13 15:15 15:30 Fine 67.9 70.5 65.1 -
      Min. 63.7                  
      Max. 68.4                  
                           
[1] No class was held at the school during all the measurement period.