| Restricted Hours Noise Monitoring Results -- Night time | |||||||||||||
| Station M3, Kwa Yick Building | |||||||||||||
| Date | Start Time | End Time | Weather | Noise level (dB(A)), 15 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 | |||||||||||
| 06-Dec-11 | 23:00 | 23:15 | Fine | 66 | 67 | 63 | No outdoor construction noise | Mainly traffic noise | - | 16.0 | 0.8 | RION- NL31 (S/N 00603867) | RION - NC73 (S/N 10997142) |
| 20-Dec-11 | 23:00 | 23:15 | Fine | 65 | 66 | 63 | No outdoor construction noise | Mainly traffic noise | - | 20.0 | 0.5 | RION- NL31 (S/N 00603867) | RION - NC73 (S/N 10997142) |
| 29-Dec-11 | 23:00 | 23:15 | Fine | 66 | 68 | 64 | No outdoor construction noise | Road traffic noise from Western Harbour Crossing, engine of turbojet, planes and helicopter overhead. | - | 17.7 | <5 | B&K 2238 S/N : 2684502 | B&K 4231 S/N: 2385180 |
| Min. | 65 | ||||||||||||
| Max. | 66 | ||||||||||||