| Restricted Hours Noise Monitoring Results -- Night time | |||||||||||||
| Station M8a, Near security room of Wah Lai House | |||||||||||||
| 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 | |||||||||||
| 10-Oct-13 | 23:00 | 23:15 | Fine | 62 | 65 | 56 | Tunnel worls | Road Traffic noise from Shek Pai Wan Road and cars from residents of Wah Lai House | Major noise source -- road traffic noise. | 29.7 | <5 | B&K 2238 S/N : 2684503 | B&K 4231 S/N: 3004068 |
| Min. | 62 | ||||||||||||
| Max. | 62 | ||||||||||||