APPENDIX D
AIR QUALITY MONITORING RESULTS
Site: Lamma Power Station Extension
Month: September 2026
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. (%) |
|
|
1/9/2026 |
22 |
28 |
15 |
42 |
25.6 |
40 |
87 |
|
7/9/2026 |
25 |
26 |
18 |
42 |
3.9 |
210 |
81 |
|
13/9/2026 |
21 |
23 |
15 |
46 |
32.9 |
80 |
77 |
|
19/9/2026 |
33 |
34 |
22 |
53 |
14.8 |
80 |
69 |
|
25/9/2026 |
33 |
40 |
20 |
63 |
12.3 |
90 |
70 |
1 hour TSP
Measurement:-
|
Date |
Time |
TSP concentration (mg/m3) |
||
|
Reservoir (AM1) |
East Gate (AM2) |
Ash Lagoon (AM3) |
||
|
1/9/2026 |
15:00 - 15:59 |
18 |
28 |
14 |
|
16:00 - 16:59 |
28 |
38 |
18 |
|
|
17:00 - 17:59 |
71 |
40 |
20 |
|
|
7/9/2026 |
15:00 - 15:59 |
29 |
37 |
19 |
|
16:00 - 16:59 |
35 |
40 |
21 |
|
|
17:00 - 17:59 |
21 |
32 |
23 |
|
|
13/9/2026 |
15:00 - 15:59 |
18 |
22 |
16 |
|
16:00 - 16:59 |
29 |
22 |
16 |
|
|
17:00 - 17:59 |
25 |
16 |
13 |
|
|
19/9/2026 |
15:00 - 15:59 |
20 |
17 |
15 |
|
16:00 - 16:59 |
61 |
45 |
27 |
|
|
17:00 - 17:59 |
60 |
54 |
31 |
|
|
|
15:00 - 15:59 |
35 |
33 |
22 |
|
25/9/2026 |
16:00 - 16:59 |
31 |
28 |
17 |
|
|
17:00 - 17:59 |
25 |
25 |
20 |
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 |
