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Noise
Monitoring Results |
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(0700-1900 hrs on Normal Weekdays) |
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Location NM7 - Open Area near Naval Base
Barrack |
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Date |
Time |
Weather |
Unit: dB (A) (30-min) |
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Measured Noise Level |
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L eq |
L10 |
L 90 |
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2-Apr-13 |
10:30 |
Cloudy |
72.1 |
73.9 |
70.3 |
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8-Apr-13 |
10:45 |
Cloudy |
72.3 |
74.4 |
70.2 |
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18-Apr-13 |
14:00 |
Cloudy |
71.0 |
73.7 |
68.5 |
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24-Apr-13 |
10:55 |
Sunny |
70.9 |
73.2 |
67.5 |
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30-Apr-13 |
10:10 |
Cloudy |
71.9 |
74.7 |
68.2 |
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(Restricted Hours - 07:00 to 23:00 holidays
& 19:00 to 23:00 on all other days ) |
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Location
NM7 - Customs' Marine Base (Block H of Government Dockyard) Rooftop |
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Date |
Time |
Weather |
dB (A) (5-min) |
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L eq |
L10 |
L 90 |
Average Leq |
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2-Apr-13 |
19:05 |
Cloudy |
65.3 |
67.5 |
61.2 |
65.2 |
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19:10 |
65.6 |
68.0 |
61.2 |
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19:15 |
64.8 |
67.8 |
61.3 |
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8-Apr-13 |
19:10 |
Cloudy |
68.5 |
71.1 |
63.2 |
67.7 |
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19:15 |
67.4 |
69.7 |
62.6 |
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19:20 |
66.9 |
70.1 |
62.7 |
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18-Apr-13 |
20:00 |
Fine |
64.9 |
66.5 |
61.5 |
65.0 |
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20:05 |
65.5 |
67.0 |
61.0 |
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20:10 |
64.7 |
67.0 |
61.2 |
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24-Apr-13 |
20:30 |
Cloudy |
64.7 |
67.0 |
61.1 |
64.8 |
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20:35 |
65.2 |
67.8 |
61.7 |
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20:40 |
64.5 |
67.0 |
61.5 |
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30-Apr-13 |
19:10 |
Cloudy |
65.7 |
68.4 |
61.2 |
65.3 |
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19:15 |
64.8 |
67.9 |
61.0 |
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19:20 |
65.3 |
68.0 |
61.2 |
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(Restricted Hours - 23:00 to 07:00 on all days ) |
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Location
NM7 - Customs' Marine Base (Block H of Government Dockyard) Rooftop |
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Date |
Time |
Weather |
dB (A) (5-min) |
Baseline Level |
Construction Noise Level |
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L eq |
L10 |
L 90 |
Average Leq |
L eq |
L eq |
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2-Apr-13 |
23:05 |
Cloudy |
60.2 |
61.7 |
56.2 |
60.1 |
59.7 |
49.6 |
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23:10 |
60.3 |
61.5 |
56.3 |
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23:15 |
59.8 |
61.4 |
55.7 |
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8-Apr-13 |
23:05 |
Cloudy |
61.4 |
62.3 |
57.6 |
61.3 |
56.2 |
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23:10 |
61.6 |
62.3 |
57.5 |
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23:15 |
60.9 |
62.6 |
56.8 |
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18-Apr-13 |
23:05 |
Fine |
59.9 |
61.7 |
57.0 |
59.3 |
59.3 Measured≦Baseline |
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23:10 |
59.1 |
61.5 |
57.3 |
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23:15 |
58.8 |
61.5 |
57.2 |
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24-Apr-13 |
23:05 |
Cloudy |
61.2 |
62.4 |
57.0 |
60.9 |
54.6 |
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23:10 |
60.9 |
61.9 |
56.5 |
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23:15 |
60.5 |
61.7 |
56.7 |
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30-Apr-13 |
23:05 |
Cloudy |
59.6 |
62.1 |
56.8 |
60.3 |
51.1 |
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23:10 |
60.4 |
62.5 |
57.1 |
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23:15 |
60.7 |
62.7 |
57.0 |
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