| 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 | |||||||||||
| 04-Jan-10 | 08:40 | 09:10 | Sunny | 69 | 70 | 67 | Cutting, Mobile cranes | Traffic noise | - | 20 | 1.4 | RION- NA27 (S/N 00201194) | RION - NC73 (S/N 10786708) |
| 15-Jan-10 | 16:00 | 16:30 | Sunny | 70 | 71 | 68 | Mobile cranes | Traffic noise | - | 15 | 0.8 | RION- NA27 (S/N 00201194) | RION - NC73 (S/N 10786708) |
| 21-Jan-10 | 14:30 | 15:00 | Fine | 69 | 71 | 68 | Cranes operation, excavation work | Traffic noise | - | 17 | 0.8 | RION- NA27 (S/N 00201194) | RION - NC73 (S/N 10786708) |
| 27-Jan-10 | 15:00 | 15:30 | Fine | 69 | 70 | 67 | Piling, cranes operation, excavation work | Traffic noise | - | 17 | 0.8 | RION- NA27 (S/N 00201194) | RION - NC73 (S/N 10786708) |
| Min. | 69 | ||||||||||||
| Max. | 70 | ||||||||||||