| Restricted Hours Noise Monitoring Results -- Night time | |||||||||||||
| Station M5a, Chuk Lam Ming Tong | |||||||||||||
| 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 | |||||||||||
| 11-Aug-11 | 23:00 | 23:15 | Cloudy | 61 | 60 | 52 | Blasting | Road traffic | N.A | 28.7 | <5 | B&K 2238 S/N : 2684503 | B&K 4231 S/N: 2385180 |
| 25-Aug-11 | 23:00 | 23:15 | Fine | 56 | 60 | 52 | Works in shaft | Road traffic | N.A | 28.6 | <5 | B&K 2238 S/N : 2684503 | B&K 4231 S/N: 2385180 |
| Min. | 56 | ||||||||||||
| Max. | 61 | ||||||||||||