APPENDIX D AIR QUALITY
MONITORING RESULTS
Site: Lamma Power
Station Extension
Month: May 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. (%) |
|
|
3/5/2025 |
42 |
31 |
35 |
8 |
8.7 |
50 |
81 |
|
9/5/2025 |
33 |
37 |
35 |
4 |
8.0 |
10 |
83 |
|
15/5/2025 |
22 |
39 |
45 |
58 |
12.6 |
60 |
78 |
|
21/5/2025 |
22 |
19 |
21 |
11 |
12.9 |
190 |
76 |
|
27/5/2025 |
38 |
42 |
34 |
33 |
30.4 |
70 |
67 |
1 hour TSP Measurement:-
|
Date |
Time |
TSP concentration
(mg/m3) |
||
|
Reservoir (AM1) |
East Gate (AM2) |
Ash Lagoon (AM3) |
||
|
3/5/2025 |
15:00 - 15:59 |
39 |
36 |
31 |
|
16:00 - 16:59 |
54 |
37 |
32 |
|
|
17:00 - 17:59 |
55 |
33 |
32 |
|
|
9/5/2025 |
15:00 - 15:59 |
28 |
18 |
32 |
|
16:00 - 16:59 |
23 |
21 |
29 |
|
|
17:00 - 17:59 |
26 |
28 |
45 |
|
|
15/5/2025 |
15:00 - 15:59 |
20 |
32 |
41 |
|
16:00 - 16:59 |
15 |
33 |
32 |
|
|
17:00 - 17:59 |
20 |
43 |
34 |
|
|
21/5/2025 |
15:00 - 15:59 |
32 |
25 |
22 |
|
16:00 - 16:59 |
23 |
21 |
21 |
|
|
17:00 - 17:59 |
18 |
25 |
23 |
|
|
27/5/2025 |
15:00 - 15:59 |
40 |
58 |
26 |
|
16:00 - 16:59 |
20 |
24 |
19 |
|
|
17:00 - 17:59 |
33 |
33 |
27 |
|
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 |
