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
01-Sep-13 16:00 16:05 Fine 67 69 64 No outdoor construction noise Traffic noise - 31 0.3 RION- NL31 (S/N 00410224) RION - NC73 (S/N 10997142)
01-Sep-13 16:05 16:10 Fine 67 69 63 -
01-Sep-13 16:10 16:15 Fine 68 69 63 -
01-Sep-13 16:00 16:15 Fine 67 69 63 -
10-Sep-13 20:20 20:25 Fine 67 69 63 No outdoor construction noise Traffic noise - 29 0.3 RION- NL31 (S/N 00410224) RION - NC73 (S/N 10997142)
10-Sep-13 20:25 20:30 Fine 65 67 62 -
10-Sep-13 20:30 20:35 Fine 67 68 63 -
10-Sep-13 20:20 20:35 Fine 66 68 63  
15-Sep-13 11:13 11:18 Sunny 67 68 64 No outdoor construction noise Traffic noise - 28 0.4 RION- NL31 (S/N 00410224) RION - NC73 (S/N 10997142)
15-Sep-13 11:18 11:23 Sunny 67 70 64 -
15-Sep-13 11:23 11:28 Sunny 67 69 64 -
15-Sep-13 11:13 11:28 Sunny 67 69 64 -
24-Sep-13 21:30 21:35 Fine 68 71 64 No outdoor construction noise Traffic noise - 29 0.5 RION- NL31 (S/N 00410224) RION - NC73 (S/N 10997142)
  21:35 21:40 Fine 69 72 65 -
24-Sep-13 21:40 21:45 Fine 67 70 64 -
24-Sep-13 21:30 21:45 Fine 68 71 64 -
29-Sep-13 10:25 10:30 Sunny 67 70 65 No outdoor construction noise Mainly traffic noise - 29 0.5 RION- NL31 (S/N 00410224) RION - NC73 (S/N 10997142)
29-Sep-13 10:30 10:35 Sunny 68 70 65 -
29-Sep-13 10:35 10:40 Sunny 68 72 65 -
29-Sep-13 10:25 10:40 Sunny 68 71 65 -
      Min. 65                  
      Max. 69                  
                           
                           
[1] No class was held at the school during all the measurement period.