APPENDIX D AIR QUALITY
MONITORING RESULTS
Site: Lamma Power
Station Extension
Month: September 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. (%) |
|
|
5/9/2023 |
54 |
63 |
27 |
63 |
13.0 |
280 |
73 |
|
11/9/2023 |
24 |
18 |
9 |
22 |
21.4 |
80 |
93 |
|
17/9/2023 |
14 |
19 |
17 |
13 |
15.1 |
60 |
85 |
|
23/9/2023 |
32 |
21 |
14 |
14 |
22.9 |
60 |
74 |
|
29/9/2023 |
34 |
26 |
14 |
39 |
21.8 |
70 |
78 |
1 hour TSP Measurement:-
|
Date |
Time |
TSP concentration
(mg/m3) |
||
|
Reservoir (AM1) |
East Gate (AM2) |
Ash Lagoon (AM3) |
||
|
5/9/2023 |
15:00 - 15:59 |
72 |
60 |
29 |
|
16:00 - 16:59 |
62 |
60 |
29 |
|
|
17:00 - 17:59 |
44 |
44 |
27 |
|
|
11/9/2023 |
15:00 - 15:59 |
11 |
10 |
6 |
|
16:00 - 16:59 |
5 |
8 |
7 |
|
|
17:00 - 17:59 |
5 |
9 |
8 |
|
|
17/9/2023 |
15:00 - 15:59 |
14 |
16 |
12 |
|
16:00 - 16:59 |
15 |
17 |
19 |
|
|
17:00 - 17:59 |
16 |
19 |
40 |
|
|
23/9/2023 |
15:00 - 15:59 |
40 |
19 |
14 |
|
16:00 - 16:59 |
30 |
28 |
17 |
|
|
17:00 - 17:59 |
30 |
26 |
17 |
|
|
29/9/2023 |
15:00 - 15:59 |
25 |
20 |
14 |
|
16:00 - 16:59 |
22 |
19 |
15 |
|
|
17:00 - 17:59 |
26 |
24 |
17 |
|
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 |
