| Restricted Hours Noise Monitoring Results |
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| Station NM4 |
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| 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 |
| 01-Aug-10 |
10:12 |
10:17 |
Sunny |
64 |
65 |
62 |
No
construction work observed. |
Occasional ship vessel pass-by noise captured. |
- |
33 |
0.2 |
RION- NL31 (S/N 00983400) |
RION - NC73 (S/N 10997142) |
| 10:22 |
10:27 |
Sunny |
65 |
67 |
62 |
- |
| 10:27 |
10:32 |
Sunny |
65 |
67 |
62 |
- |
| 10:12 |
10:32 |
Sunny |
65 |
67 |
62 |
Average results during 15 min monitoring |
| 08-Aug-10 |
10:00 |
10:05 |
Sunny |
64 |
65 |
62 |
No
construction work observed. Noise from crawler cranes at Leighton Site. |
Traffic noise |
- |
30 |
0.2 |
RION- NL31 (S/N 00983400) |
RION - NC73 (S/N 10997142) |
| 10:05 |
10:10 |
Sunny |
64 |
65 |
63 |
- |
| 10:10 |
10:15 |
Sunny |
65 |
67 |
63 |
- |
| 10:00 |
10:15 |
Sunny |
64 |
66 |
63 |
Average results during 15 min monitoring |
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No
construction work observed. Noise from a crawler crane at Leighton Site. |
Occasional ship vessel pass-by noise captured. |
- |
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RION- NL31 (S/N 00983400) |
RION - NC73 (S/N 10997142) |
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- |
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- |
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Average results during 15 min monitoring |
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No
construction work observed. Noise from 2 concrete lorry mixers at Leighton
Site. |
Occasional ship vessel pass-by noise captured. |
- |
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RION- NL31 (S/N 00983400) |
RION - NC73 (S/N 10997142) |
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Average results during 15 min monitoring |
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- |
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RION- NL31 (S/N 00983400) |
RION - NC73 (S/N 10786708) |
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- |
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- |
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- |
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Min. |
64 |
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Max. |
65 |
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