| Daytime Noise Monitoring Results | |||||||||||||
| Station NM4 | |||||||||||||
| Date | Start Time | End Time | Weather | Noise level (dB(A)), 30 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 | |||||||||||
| 02-Jul-10 | 09:28 | 09:58 | Sunny | 69 | 71 | 67 | Crawler cranes, pre-bored piling | Traffic Noise | - | 30 | 0.5 | RION- NL31 (S/N 00983400) | RION - NC73 (S/N 10786708) |
| 08-Jul-10 | 10:28 | 10:58 | Sunny | 69 | 70 | 67 | Crawler cranes | Traffic Noise | - | 31 | 0.2 | RION- NL31 (S/N 00983400) | RION - NC73 (S/N 10786708) |
| 14-Jul-10 | 09:25 | 09:55 | Sunny | 70 | 72 | 67 | Crawler Crane | Traffic Noise | - | 33 | 0.3 | RION- NL31 (S/N 00983400) | RION - NC73 (S/N 10997142) |
| 20-Jul-10 | 08:25 | 08:55 | Sunny | 70 | 71 | 68 | Crawler Crane | Traffic Noise | - | 30 | 0.3 | RION- NL31 (S/N 00983400) | RION - NC73 (S/N 10997142) |
| 26-Jul-10 | 13:20 | 13:50 | Sunny | 69 | 70 | 67 | Crawler Crane, welding | Traffic noise | - | 30 | 0.8 | RION- NL31 (S/N 00983400) | RION - NC73 (S/N 10997142) |
| Min. | 69 | ||||||||||||
| Max. | 70 | ||||||||||||