| Restricted Hours Noise Monitoring Results (Evening Time) | |||||||||||||
| Station NM6 Customs' Marine Base (Block H of Government Dockyard) Rooftop | |||||||||||||
| Date | Start Time | End Time | Weather | Noise level (dB(A)), 5 min+ | Major Construction Noise Source(s) Observed | Other Noise Source(s) Observed | Remarks | Mean Temp. (°C) | Mean Wind Speed (m/s) | Noise Meter Model / ID | Calibrator Model / ID | ||
| Leq | L10 | L90 | |||||||||||
| 06-Dec-10 | 19:54 | 19:59 | Fine | 65 | 66 | 64 | excavation in process | traffic noise from nearby pier | - | 23.5 | <5 m/s | B&K 2238 | B&K 4231 |
| 19:59 | 20:04 | 65 | 66 | 64 | |||||||||
| 20:04 | 20:09 | 65 | 66 | 64 | |||||||||
| 16-Dec-10 | 22:02 | 22:07 | Fine | 63 | 64 | 63 | excavation in process | traffic noise from nearby pier | - | 14.3 | <5 m/s | B&K 2250L | B&K 4231 |
| 22:07 | 22:12 | 64 | 65 | 63 | |||||||||
| 22:12 | 22:17 | 64 | 64 | 63 | |||||||||
| 23-Dec-10 | 19:05 | 19:10 | Fine | 68 | 69 | 67 | excavation in process | traffic noise from nearby pier | - | 18.1 | <5 m/s | B&K 2250L | B&K 4231 |
| 19:10 | 19:15 | 68 | 70 | 66 | |||||||||
| 19:15 | 19:20 | 68 | 70 | 66 | |||||||||
| 30-Dec-10 | 19:05 | 19:10 | Fine | 63 | 64 | 63 | excavation in process and crane in operation | traffic noise from nearby pier | - | 17.8 | <5 m/s | B&K 2270 | B&K 4231 |
| 19:10 | 19:15 | 64 | 65 | 63 | |||||||||
| 19:15 | 19:20 | 63 | 64 | 62 | |||||||||
| Min. | 63 | ||||||||||||
| Max. | 68 | ||||||||||||
| + - Façade measurement | |||||||||||||