| Night time Noise Monitoring Results | |||||||||||||
| Station M8, Wah Lai House | |||||||||||||
| Date | Start Time | End Time | Weather | Noise level (dB(A)) | 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 | |||||||||||
| 10/04/2014-a | 23:00 | 23:05 | Fine | 58 | 60 | 52 | Tunnel worls | Road Traffic noise from Shek Pai Wan Road and cars from residents of Wah Lai House | Major noise source -- road traffic noise. | 22.1 | <5 | B&K 2238 S/N : 2684503 | B&K 4231 S/N: 3004068 |
| 10/04/2014-b | 23:05 | 23:10 | Fine | 56 | 59 | 52 | |||||||
| 10/04/2014-c | 23:10 | 23:15 | Fine | 61 | 64 | 52 | |||||||
| 10-Apr-14 | 23:00 | 23:15 | Fine | 62 | 65 | 55 | Tunnel worls | Road Traffic noise from Shek Pai Wan Road and cars from residents of Wah Lai House | Major noise source -- road traffic noise. | 22.1 | <5 | B&K 2238 S/N : 2684503 | B&K 4231 S/N: 3004068 |
| Average | 59 | ||||||||||||
| Minimum | 56 | ||||||||||||
| Maximum | 62 | ||||||||||||