APPENDIX D AIR QUALITY
MONITORING RESULTS
Site: Lamma Power
Station Extension
Month: July 2023
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. (%) |
|
|
1/7/2023 5 |
15 |
14 |
9 |
24 |
16.2 |
200 |
82 |
|
7/7/2023 |
40 |
51 |
23 |
31 |
24.7 |
220 |
76 |
|
13/7/2023 |
15 |
17 |
11 |
11 |
6.5 |
90 |
71 |
|
19/7/2023 |
19 |
23 |
15 |
21 |
19.8 |
120 |
88 |
|
25/7/2023 |
18 |
35 |
13 |
8 |
14.3 |
240 |
73 |
|
31/7/2023 |
15 |
18 |
6 |
11 |
21.9 |
80 |
84 |
1 hour TSP Measurement:-
|
Date |
Time |
TSP concentration
(mg/m3) |
||
|
Reservoir (AM1) |
East Gate (AM2) |
Ash Lagoon (AM3) |
||
|
1/7/2023 |
15:00 - 15:59 |
9 |
14 |
12 |
|
16:00 - 16:59 |
13 |
12 |
7 |
|
|
17:00 - 17:59 |
4 |
8 |
7 |
|
|
7/7/2023 |
15:00 - 15:59 |
26 |
89 |
31 |
|
16:00 - 16:59 |
36 |
91 |
30 |
|
|
17:00 - 17:59 |
27 |
57 |
29 |
|
|
13/7/2023 |
15:00 - 15:59 |
20 |
9 |
8 |
|
16:00 - 16:59 |
1 |
8 |
9 |
|
|
17:00 - 17:59 |
22 |
30 |
14 |
|
|
19/7/2023 |
15:00 - 15:59 |
16 |
18 |
9 |
|
16:00 - 16:59 |
13 |
27 |
11 |
|
|
17:00 - 17:59 |
18 |
24 |
14 |
|
|
25/7/2023 |
15:00 - 15:59 |
19 |
44 |
20 |
|
16:00 - 16:59 |
20 |
48 |
17 |
|
|
17:00 - 17:59 |
24 |
29 |
12 |
|
|
31/7/2023 |
15:00 - 15:59 |
13 |
9 |
4 |
|
16:00 - 16:59 |
9 |
4 |
4 |
|
|
17:00 - 17:59 |
9 |
8 |
6 |
|
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 |
