APPENDIX D AIR QUALITY MONITORING RESULTS
Site: Lamma Power Station Extension
Month: July 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.
(%) |
|
|
2/7/2025 |
20 |
19 |
21 |
11 |
18.0 |
80 |
80 |
|
8/7/2025 |
20 |
81 |
22 |
11 |
27.9 |
240 |
76 |
|
14/7/2025 |
24 |
22 |
28 |
17 |
12.3 |
240 |
79 |
|
20/7/2025 |
21 |
27 |
27 |
8 |
61.3 |
110 |
91 |
|
26/7/2025 |
40 |
36 |
42 |
19 |
19.3 |
240 |
74 |
1 hour TSP Measurement:-
|
Date |
Time |
TSP concentration (mg/m3) |
||
|
Reservoir (AM1) |
East Gate (AM2) |
Ash Lagoon (AM3) |
||
|
2/7/2025 |
15:00 - 15:59 |
16 |
25 |
17 |
|
16:00 - 16:59 |
25 |
22 |
19 |
|
|
17:00 - 17:59 |
22 |
16 |
32 |
|
|
8/7/2025 |
15:00 - 15:59 |
17 |
33 |
41 |
|
16:00 - 16:59 |
16 |
38 |
17 |
|
|
17:00 - 17:59 |
16 |
46 |
31 |
|
|
14/7/2025 |
15:00 - 15:59 |
25 |
21 |
67 |
|
16:00 - 16:59 |
40 |
21 |
37 |
|
|
17:00 - 17:59 |
21 |
17 |
37 |
|
|
20/7/2025 |
15:00 - 15:59 |
24 |
24 |
31 |
|
16:00 - 16:59 |
22 |
21 |
12 |
|
|
17:00 - 17:59 |
18 |
24 |
30 |
|
|
26/7/2025 |
15:00 - 15:59 |
51 |
39 |
52 |
|
16:00 - 16:59 |
43 |
38 |
46 |
|
|
17:00 - 17:59 |
33 |
42 |
54 |
|
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 |
