| Restricted Hours Noise Monitoring Results -- Daytime on Public Holiday | |||||||||||||
| Station M3, Kwan Yick building | |||||||||||||
| 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 | |||||||||||
| 04-Mar-12 | 10:15 | 10:30 | Fine | 66 | 68 | 64 | No outdoor construction noise | Mainly traffic noise | - | 16.0 | 0.4 | RION- NL31 (S/N 00603867) | RION - NC73 (S/N 10997142) |
| 18-Mar-12 | 09:50 | 10:05 | Fine | 66 | 67 | 63 | No outdoor construction noise | Mainly traffic noise | - | 20.0 | 0.6 | RION- NL31 (S/N 00603867) | RION - NC73 (S/N 10997142) |
| 25-Mar-12 | 10:50 | 11:05 | Fine | 66 | 69 | 65 | No outdoor construction noise | Mainly traffic noise | - | 18.5 | <5 | B&K 2238 S/N: 2684502 | B&K 4231 S/N: 2656516 |
| Min. | 66 | ||||||||||||
| Max. | 66 | ||||||||||||
| Remark: The data (4 and 18 Mar ) was provided by Contract No. DC/2007/23. Calibration certificates for the noise meter(s) and calibrator(s) used were included in the corresponding Monthly EM&A Report for this Contract | |||||||||||||
| Restricted Hours Noise Monitoring Results -- Evening time | |||||||||||||
| Station M3, Kwan Yick building | |||||||||||||
| 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 | |||||||||||
| 13-Mar-12 | 21:11 | 21:26 | Cloudy | 65 | 67 | 63 | No outdoor construction noise | Mainly traffic noise | - | 20.0 | 0.9 | RION- NL31 (S/N 00603867) | RION - NC73 (S/N 10997142) |
| 15-Mar-12 | 22:45 | 23:00 | Hazy | 66 | 68 | 64 | No major construction works | Road traffic noise from Western Harbour Crossing, engine of turbojet and digging process at sea near the tunnel. | N.A | 17.4 | <5 | B&K 2238 S/N : 2684502 | B&K 4231 S/N: 2656516 |
| 27-Mar-12 | 22:00 | 22:15 | Fine | 63 | 64 | 61 | No outdoor construction noise | Mainly traffic noise | - | 20.0 | 0.4 | RION- NL31 (S/N 00603867) | RION - NC73 (S/N 10997142) |
| Min. | 63 | ||||||||||||
| Max. | 66 | ||||||||||||
| [1] The data (M3_Evening Time) of 13 and 27 Mar were provided by Contract No. DC/2007/23. Calibration certificates for the noise meter(s) and calibrator(s) used were included in the corresponding Monthly EM&A Report for this Contract | |||||||||||||