APPENDIX D AIR QUALITY MONITORING RESULTS
Site: Lamma Power
Station Extension
Month: February 2025
24 hour TSP
Measurement:-
|
Date |
TSP concentration
(mg/m3) |
Weather
Information (From Hong Kong
Observatory) |
|||||
|
Reservoir (AM1) |
East Gate (AM2) |
Ash Lagoon (AM3) |
Tai Yuen Village (AM4) |
Mean Wind Speed (km/hr) |
Prevailing Wind
Dir. (°) |
Mean R.H. (%) |
|
|
2/2/2025 |
20 |
18 |
16 |
7 |
24.4 |
40 |
86 |
|
8/2/2025 |
76 |
67 |
52 |
29 |
29.3 |
360 |
43 |
|
14/2/2025 |
26 |
28 |
26 |
8 |
24.0 |
70 |
87 |
|
20/2/2025 |
37 |
36 |
30 |
7 |
31.5 |
60 |
79 |
|
26/2/2025 |
45 |
51 |
38 |
13 |
16.0 |
60 |
76 |
1 hour TSP Measurement:-
|
Date |
Time |
TSP concentration
(mg/m3) |
||
|
Reservoir (AM1) |
East Gate (AM2) |
Ash Lagoon (AM3) |
||
|
2/2/2025 |
15:00 - 15:59 |
18 |
16 |
14 |
|
16:00 - 16:59 |
20 |
16 |
15 |
|
|
17:00 - 17:59 |
17 |
17 |
14 |
|
|
8/2/2025 |
15:00 - 15:59 |
99 |
85 |
64 |
|
16:00 - 16:59 |
97 |
84 |
60 |
|
|
17:00 - 17:59 |
85 |
71 |
59 |
|
|
14/2/2025 |
15:00 - 15:59 |
25 |
28 |
36 |
|
16:00 - 16:59 |
25 |
34 |
23 |
|
|
17:00 - 17:59 |
29 |
36 |
26 |
|
|
20/2/2025 |
15:00 - 15:59 |
41 |
38 |
30 |
|
16:00 - 16:59 |
37 |
32 |
26 |
|
|
17:00 - 17:59 |
25 |
29 |
24 |
|
|
26/2/2025 |
15:00 - 15:59 |
23 |
38 |
20 |
|
16:00 - 16:59 |
28 |
81 |
33 |
|
|
17:00 - 17:59 |
46 |
76 |
33 |
|
1-hr TSP 24-hr
TSP
(mg/m3) (mg/m3)
Action Level 340 190
Limit Level 500 260
Calibration: Calibration
details are shown in appendix F.
Equipment used:
|
Location |
1-hr TSP |
24-hr TSP |
|
Reservoir, East
Gate and Ash Lagoon |
TEOM |
TEOM |
|
Tai Yuen Village |
- |
MINIVOL Portable
Sampler |
