| 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 | |||||||||||
| 13-Feb-11 | 15:40 | 15:45 | Trace Rain | 66 | 68 | 61 | Noise from traffic pass-by and nearby playground | Traffic noise | - | 12 | 0.6 | RION- NL31 (S/N 00983400) | RION - NC73 (S/N 10997142) |
| 15:45 | 15:50 | Trace Rain | 66 | 68 | 61 | - | |||||||
| 15:50 | 15:55 | Trace Rain | 67 | 68 | 62 | - | |||||||
| 15:40 | 15:55 | Trace Rain | 66 | 68 | 61 | - | |||||||
| 18-Feb-11 | 23:00 | 23:05 | Fine | 62 | 64 | 58 | - | Mainly traffic noise | - | 14 | 0.3 | RION- NL31 (S/N 00983400) | RION - NC73 (S/N 10997142) |
| 23:05 | 23:10 | Fine | 61 | 64 | 58 | - | |||||||
| 23:10 | 23:15 | Fine | 62 | 63 | 58 | - | |||||||
| 23:00 | 23:15 | Fine | 62 | 64 | 58 | - | |||||||
| 27-Feb-11 | 09:50 | 09:55 | Sunny | 68 | 70 | 61 | - | traffic noise and nearby playground | - | 21 | 0.2 | RION- NL31 (S/N 00410224) | RION - NC73 (S/N 10997142) |
| 09:55 | 10:00 | Sunny | 64 | 66 | 61 | - | |||||||
| 10:00 | 10:05 | Sunny | 64 | 67 | 61 | - | |||||||
| 09:50 | 10:05 | Sunny | 66 | 68 | 61 | - | |||||||
| Min. | 61 | ||||||||||||
| Max. | 68 | ||||||||||||
| [1] No class was held at the school during the measurement period on 13, 18 and 27 February 2011. | |||||||||||||