APPENDIX D
AIR QUALITY MONITORING RESULTS
Site: Lamma Power Station Extension
Month: June 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. (%) |
|
|
2/6/2025 |
35 |
26 |
24 |
10 |
17.7 |
210 |
83 |
|
8/6/2025 |
17 |
9 |
10 |
11 |
10.8 |
210 |
76 |
|
14/6/2025 |
38 |
35 |
38 |
58 |
39.9 |
170 |
81 |
|
20/6/2025 |
24 |
13 |
16 |
15 |
18.4 |
170 |
82 |
|
26/6/2025 |
16 |
18 |
16 |
39 |
23.9 |
120 |
84 |
1 hour TSP
Measurement:-
|
Date |
Time |
TSP concentration (mg/m3) |
||
|
Reservoir (AM1) |
East Gate (AM2) |
Ash Lagoon (AM3) |
||
|
2/6/2025 |
15:00 - 15:59 |
49 |
32 |
34 |
|
16:00 - 16:59 |
43 |
28 |
30 |
|
|
17:00 - 17:59 |
41 |
27 |
25 |
|
|
8/6/2025 |
15:00 - 15:59 |
25 |
13 |
17 |
|
16:00 - 16:59 |
18 |
14 |
12 |
|
|
17:00 - 17:59 |
14 |
13 |
10 |
|
|
14/6/2025 |
15:00 - 15:59 |
47 |
38 |
55 |
|
16:00 - 16:59 |
46 |
41 |
42 |
|
|
17:00 - 17:59 |
38 |
43 |
27 |
|
|
20/6/2025 |
15:00 - 15:59 |
28 |
13 |
4 |
|
16:00 - 16:59 |
10 |
19 |
29 |
|
|
17:00 - 17:59 |
25 |
19 |
37 |
|
|
26/6/2025 |
15:00 - 15:59 |
25 |
20 |
4 |
|
16:00 - 16:59 |
4 |
11 |
28 |
|
|
17:00 - 17:59 |
10 |
22 |
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 |
