Restricted Hours Noise Monitoring Results (Night-time) |
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Station NM6
Customs' Marine Base (Block H of Government Dockyard) Rooftop |
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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 |
Mean Temp. (°C) |
Mean Wind Speed (m/s) |
Noise Meter Model / ID |
Calibrator Model / ID |
Leq |
L10 |
L90 |
01-Mar-10 |
23:02 |
23:07 |
Fine |
58 |
59 |
57 |
excavation
in process |
occasional
noise from FSD Diving Rescue and Diving Training Centre |
- |
22.1 |
<5
m/s |
B&K
2238 |
B&K
4231 |
23:07 |
23:12 |
Fine |
58 |
59 |
57 |
23:12 |
23:17 |
Fine |
58 |
59 |
57 |
12-Mar-10 |
23:03 |
23:08 |
Fine |
61 |
62 |
61 |
general tidy-up works by workers was undertaking |
engine noise from barge anchored at nearby piers |
- |
16.8 |
<5 m/s |
B&K 2238 |
B&K 4231 |
23:08 |
23:13 |
Fine |
61 |
62 |
61 |
23:13 |
23:18 |
Fine |
61 |
62 |
61 |
18-Mar-10 |
23:02 |
23:07 |
Fine |
65 |
66 |
65 |
excavation
in process |
engine noise
from barge anchored at nearby piers; traffic noise from aircrafts passing by
and from nearby piers |
- |
20.9 |
<5 m/s |
B&K 2238 |
B&K 4231 |
23:07 |
23:12 |
Fine |
66 |
67 |
65 |
23:12 |
23:17 |
Fine |
66 |
66 |
65 |
24-Mar-10 |
23:00 |
23:05 |
Fine |
67 |
68 |
66 |
excavation in process |
chiller located at rooftop of Customs' Marine Base (which is not
operating during the past measurement); traffic noise from aircrafts passing
by and nearby piers |
- |
24.4 |
<5 m/s |
B&K 2238 |
B&K 4231 |
23:05 |
23:10 |
Fine |
67 |
68 |
67 |
23:10 |
23:15 |
Fine |
67 |
68 |
66 |
30-Mar-10 |
23:00 |
23:05 |
Fine |
64 |
65 |
64 |
excavation in process |
traffic noise from aircrafts passing by and nearby piers |
- |
19 |
<5 m/s |
B&K 2238 |
B&K 4231 |
23:05 |
23:10 |
Fine |
64 |
65 |
63 |
23:10 |
23:15 |
Fine |
64 |
65 |
63 |
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Min. |
58 |
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Max. |
67 |
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