| 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 | |||||||||||
| 01-Jun-11 | 19:58 | 20:03 | Fine | 61 | 61 | 60 | excvation in process | other construction site nearby; traffic noise from nearby pier | - | 27.9 | <5 m/s | B&K 2250L | B&K 4231 |
| 20:03 | 20:08 | 61 | 61 | 60 | |||||||||
| 20:08 | 20:13 | 61 | 61 | 60 | |||||||||
| 07-Jun-11 | 21:18 | 21:23 | Fine | 60 | 60 | 59 | excvation in process | other construction site nearby; traffic noise from nearby pier | - | 29.6 | <5 m/s | B&K 2250L | B&K 4231 |
| 21:23 | 21:28 | 60 | 61 | 60 | |||||||||
| 21:28 | 21:33 | 60 | 60 | 59 | |||||||||
| 13-Jun-11 | 19:01 | 19:06 | Fine | 61 | 62 | 61 | excvation in process | other construction site nearby; traffic noise from nearby pier | - | 28.7 | <5 m/s | B&K 2250L | B&K 4231 |
| 19:06 | 19:11 | 61 | 62 | 61 | |||||||||
| 19:11 | 19:16 | 61 | 62 | 61 | |||||||||
| 25-Jun-11 | 21:38 | 21:43 | Fine | 62 | 62 | 61 | excvation in process | other construction site nearby; traffic noise from nearby pier; noise from exhaust fans at STW | - | 29.1 | <5 m/s | B&K 2250L | B&K 4231 |
| 21:43 | 21:48 | 62 | 62 | 62 | |||||||||
| 21:48 | 21:53 | 62 | 62 | 62 | |||||||||
| 27-Jun-11 | 19:04 | 19:09 | Fine | 61 | 62 | 61 | excvation in process | other construction site nearby; traffic noise from nearby pier; noise from exhaust fans at STW | - | 29.4 | <5 m/s | B&K 2250L | B&K 4231 |
| 19:09 | 19:14 | 61 | 62 | 61 | |||||||||
| 19:14 | 19:19 | 61 | 62 | 61 | |||||||||
| Min. | 60 | ||||||||||||
| Max. | 62 | ||||||||||||
| + - Facade measurement | |||||||||||||