APPENDIX D AIR QUALITY
MONITORING RESULTS
Site: Lamma Power
Station Extension
Month: May 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. (%) |
|
|
2/5/2023 5 |
34 |
46 |
44 |
47 |
28.9 |
70 |
74 |
|
8/5/2023 |
8 |
20 |
16 |
13 |
27.4 |
10 |
88 |
|
14/5/2023 |
5 |
17 |
13 |
24 |
18.6 |
20 |
93 |
|
20/5/2023 |
22 |
35 |
30 |
31 |
14.2 |
140 |
80 |
|
26/5/2023 |
57 |
31 |
26 |
28 |
19.9 |
80 |
87 |
1 hour TSP Measurement:-
|
Date |
Time |
TSP concentration
(mg/m3) |
||
|
Reservoir (AM1) |
East Gate (AM2) |
Ash Lagoon (AM3) |
||
|
2/5/2023 |
15:00 - 15:59 |
31 |
45 |
33 |
|
16:00 - 16:59 |
31 |
42 |
31 |
|
|
17:00 - 17:59 |
28 |
35 |
30 |
|
|
8/5/2023 |
15:00 - 15:59 |
6 |
9 |
9 |
|
16:00 - 16:59 |
4 |
10 |
12 |
|
|
17:00 - 17:59 |
0 |
17 |
16 |
|
|
14/5/2023 |
15:00 - 15:59 |
5 |
3 |
2 |
|
16:00 - 16:59 |
3 |
0 |
5 |
|
|
17:00 - 17:59 |
0 |
17 |
17 |
|
|
20/5/2023 |
15:00 - 15:59 |
73 |
44 |
25 |
|
16:00 - 16:59 |
42 |
45 |
25 |
|
|
17:00 - 17:59 |
23 |
30 |
25 |
|
|
26/5/2023 |
15:00 - 15:59 |
12 |
22 |
19 |
|
16:00 - 16:59 |
9 |
22 |
20 |
|
|
17:00 - 17:59 |
6 |
26 |
23 |
|
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 |
