Appendix E.1 Continuous Noise Monitoring Results for October 2006
Site:
Lamma Power Station Extension – Superstructure
and E&M Works
Measurement Location: Ash Lagoon and Ching Lam
Measurement Parameter: 30-min Leq (07:00-19:00 hrs
on normal weekdays)
5-min Leq (07:00-23:00 hrs on holidays and
19:00-23:00 hrs on all other days, and 23:00-
07:00 hrs of next day)
Noise Equipment Used: Rion NA-27 (Ash Lagoon) and B&K 2250 (Ching
Lam) sound level meters and Rion NC-74 sound
level calibrator
Last Calibration Date: Rion NA-27 sound level meter
- 17/02/2005
B&K 2250 sound level
meter - 20/06/2006
Rion NC-74 calibrator - 13/03/2006
|
Date |
Time |
Calculated Noise Level at NSR at Long Tsai Tsuen/Hung Shing Ye (dB(A)) |
Limit Noise Level (dB(A)) |
Calculated Noise Level at NSR at the school within Tai Wan San Tsuen (dB(A)) |
Limit Noise Level (dB(A)) |
||
|
Max |
Avg |
Max |
Avg |
||||
|
01/10/2006 |
07:00-23:00 |
40 |
32 |
60 |
35 |
27 |
60 |
|
01/10/2006 |
23:00-07:00 |
33 |
29 |
45 |
28 |
24 |
45 |
|
02/10/2006 |
07:00-23:00 |
41 |
35 |
60 |
36 |
31 |
60 |
|
02/10/2006 |
23:00-07:00 |
39 |
33 |
45 |
32 |
27 |
45 |
|
03/10/2006 |
07:00-19:00 |
38 |
38 |
75 |
33 |
33 |
70 |
|
03/10/2006 |
19:00-23:00 |
-- |
-- |
60 |
-- |
-- |
60 |
|
03/10/2006 |
23:00-07:00 |
-- |
-- |
45 |
-- |
-- |
45 |
|
04/10/2006 |
07:00-19:00 |
-- |
-- |
75 |
-- |
-- |
70 |
|
04/10/2006 |
19:00-23:00 |
-- |
-- |
60 |
-- |
-- |
60 |
|
04/10/2006 |
23:00-07:00 |
42 |
33 |
45 |
37 |
29 |
45 |
|
05/10/2006 |
07:00-19:00 |
-- |
-- |
75 |
-- |
-- |
70 |
|
05/10/2006 |
19:00-23:00 |
-- |
-- |
60 |
-- |
-- |
60 |
|
05/10/2006 |
23:00-07:00 |
32 |
27 |
45 |
27 |
22 |
45 |
|
06/10/2006 |
07:00-19:00 |
-- |
-- |
75 |
-- |
-- |
70 |
|
06/10/2006 |
19:00-23:00 |
-- |
-- |
60 |
-- |
-- |
60 |
|
06/10/2006 |
23:00-07:00 |
36 |
29 |
45 |
31 |
25 |
45 |
|
07/10/2006 |
07:00-23:00 |
39 |
37 |
60 |
34 |
32 |
60 |
|
07/10/2006 |
23:00-07:00 |
33 |
28 |
45 |
29 |
24 |
45 |
|
08/10/2006 |
07:00-23:00 |
37 |
35 |
60 |
33 |
31 |
60 |
|
08/10/2006 |
23:00-07:00 |
34 |
29 |
45 |
29 |
24 |
45 |
|
09/10/2006 |
07:00-19:00 |
39 |
38 |
75 |
34 |
33 |
70 |
|
09/10/2006 |
19:00-23:00 |
-- |
-- |
60 |
-- |
-- |
60 |
|
09/10/2006 |
23:00-07:00 |
37 |
32 |
45 |
33 |
28 |
45 |
|
10/10/2006 |
07:00-19:00 |
33 |
33 |
75 |
28 |
28 |
70 |
|
10/10/2006 |
19:00-23:00 |
30 |
30 |
60 |
43 |
41 |
60 |
|
10/10/2006 |
23:00-07:00 |
-- |
-- |
45 |
40 |
35 |
45 |
|
11/10/2006 |
07:00-19:00 |
-- |
-- |
75 |
32 |
29 |
70 |
|
11/10/2006 |
19:00-23:00 |
-- |
-- |
60 |
22 |
22 |
60 |
|
11/10/2006 |
23:00-07:00 |
-- |
-- |
45 |
38 |
32 |
45 |
|
12/10/2006 |
07:00-19:00 |
-- |
-- |
75 |
-- |
-- |
70 |
|
12/10/2006 |
19:00-23:00 |
-- |
-- |
60 |
-- |
-- |
60 |
|
12/10/2006 |
23:00-07:00 |
-- |
-- |
45 |
27 |
23 |
45 |
|
13/10/2006 |
07:00-19:00 |
-- |
-- |
75 |
-- |
-- |
70 |
|
13/10/2006 |
19:00-23:00 |
-- |
-- |
60 |
-- |
-- |
60 |
|
13/10/2006 |
23:00-07:00 |
-- |
-- |
45 |
30 |
26 |
45 |
|
14/10/2006 |
07:00-19:00 |
-- |
-- |
75 |
-- |
-- |
70 |
|
14/10/2006 |
19:00-23:00 |
31 |
29 |
60 |
-- |
-- |
60 |
|
14/10/2006 |
23:00-24:00 |
36 |
33 |
45 |
27 |
26 |
45 |
Note: “—-“ represents the measured noise monitoring
data lower than the established notional background level/discarded under strong wind.
Site: Lamma Power Station Extension – Transmission System
Measurement
Parameter: 30-min Leq (07:00-19:00
hrs on normal weekdays)
Noise
Equipment Used: B&K 2238 sound
level meter and B&K 4231 sound
level calibrator
Wind Speed
Equipment: Extech Instruments 45118
Last
Calibration Date: B&K 2238 sound level meter – 16/01/2006
B&K
4231 sound level calibrator – 16/01/2006
Measurement
Location: N4 – Pak Kok Tsui No.2
|
Date |
Time |
Measured Noise Level
(dB(A)) |
Notional Background
Noise Level (dB(A)) |
Corrected Noise Level
(dB(A)) |
Limit Noise Level
(dB(A)) |
Wind Speed (m/s) |
|
03/10/2006 |
10:00-10:30 |
48.8 |
54.9 |
-- |
75 |
<5 |
|
06/10/2006 |
14:00-14:30 |
48.9 |
54.9 |
-- |
75 |
<5 |
|
10/10/2006 |
10:00-10:30 |
52.0 |
54.9 |
-- |
75 |
<5 |
|
13/10/2006 |
14:00-14:30 |
49.3 |
54.9 |
-- |
75 |
<5 |
|
17/10/2006 |
10:00-10:30 |
48.2 |
54.9 |
-- |
75 |
<5 |
|
20/10/2006 |
14:00-14:30 |
48.3 |
54.9 |
-- |
75 |
<5 |
|
24/10/2006 |
10:00-10:30 |
48.1 |
54.9 |
-- |
75 |
<5 |
|
27/10/2006 |
14:00-14:30 |
49.1 |
54.9 |
-- |
75 |
<5 |
|
31/10/2006 |
10:00-10:30 |
48.6 |
54.9 |
-- |
75 |
<5 |
Measurement
Location: N5 – Pak Kok Tsui No.8
|
Date |
Time |
Measured Noise Level (dB(A)) |
Notional Background
Noise Level (dB(A)) |
Corrected Noise Level
(dB(A)) |
Limit Noise Level
(dB(A)) |
Wind Speed (m/s) |
|
03/10/2006 |
10:40-11:10 |
50.6 |
54.9 |
-- |
75 |
<5 |
|
06/10/2006 |
14:40-15:10 |
51.1 |
54.9 |
-- |
75 |
<5 |
|
10/10/2006 |
10:40-11:10 |
52.4 |
54.9 |
-- |
75 |
<5 |
|
13/10/2006 |
14:40-15:10 |
50.9 |
54.9 |
-- |
75 |
<5 |
|
17/10/2006 |
10:40-11:10 |
49.2 |
54.9 |
-- |
75 |
<5 |
|
20/10/2006 |
14:40-15:10 |
50.2 |
54.9 |
-- |
75 |
<5 |
|
24/10/2006 |
10:40-11:10 |
49.1 |
54.9 |
-- |
75 |
<5 |
|
27/10/2006 |
14:40-15:10 |
49.3 |
54.9 |
-- |
75 |
<5 |
|
31/10/2006 |
10:40-11:10 |
49.7 |
54.9 |
-- |
75 |
<5 |
Note:
1.
The noise generated from local noisy events (e.g. dog barking,
passing-by pedestrians, motor vehicle, aeroplane, helicopter, etc.) was manually removed during measurement as far
as practicable.
2.
“--“ represents the measured noise monitoring data lower than
the established notional background level.