| Night time Noise Monitoring Results | |||||||||||||
| Station M3, Kwan Yick Building | |||||||||||||
| Date | Start Time | End Time | Weather | Noise level (dB(A)), 30 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 | |||||||||||
| 15/08/2014-a | 23:00 | 23:05 | Fine | 67 | 68 | 65 | No outdoor construction noise | Mainly traffic noise | - | 29.2 | <5 | B&K 2238 S/N : 2808432 | B&K 4231 S/N: 3003246 |
| 15/08/2014-b | 23:05 | 23:10 | Fine | 67 | 68 | 65 | |||||||
| 15/08/2014-c | 23:10 | 23:15 | Fine | 68 | 69 | 66 | |||||||
| 15-Aug-14 | 23:00 | 23:15 | Fine | 67 | 68 | 65 | No outdoor construction noise | Road traffic noise from Western Harbour Crossing, engine of turbojet and helicopter fly over head | - | 29.2 | <5 | B&K 2238 S/N : 2808432 | B&K 4231 S/N: 3003246 |
| Max | 68 | ||||||||||||
| Min | 67 | ||||||||||||
| Average | 67 | ||||||||||||