APPENDIX D AIR QUALITY MONITORING RESULTS
Site: Lamma Power
Station Extension
Month: April 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. (%) |
|
|
2/4/2023 5 |
25 |
23 |
20 |
17 |
30.9 |
80 |
92 |
|
8/4/2023 |
53 |
49 |
37 |
32 |
34.2 |
80 |
73 |
|
14/4/2023 |
92 |
88 |
71 |
71 |
10.8 |
50 |
80 |
|
20/4/2023 |
19 |
21 |
17 |
19 |
16.8 |
30 |
94 |
|
26/4/2023 |
32 |
27 |
20 |
19 |
25.6 |
80 |
73 |
1 hour TSP Measurement:-
|
Date |
Time |
TSP concentration
(mg/m3) |
||
|
Reservoir (AM1) |
East Gate (AM2) |
Ash Lagoon (AM3) |
||
|
2/4/2023 |
15:00 - 15:59 |
22 |
24 |
20 |
|
16:00 - 16:59 |
33 |
30 |
26 |
|
|
17:00 - 17:59 |
32 |
29 |
26 |
|
|
8/4/2023 |
15:00 - 15:59 |
61 |
56 |
41 |
|
16:00 - 16:59 |
64 |
64 |
45 |
|
|
17:00 - 17:59 |
68 |
67 |
50 |
|
|
14/4/2023 |
15:00 - 15:59 |
83 |
92 |
84 |
|
16:00 - 16:59 |
84 |
122 |
95 |
|
|
17:00 - 17:59 |
91 |
106 |
92 |
|
|
20/4/2023 |
15:00 - 15:59 |
21 |
25 |
16 |
|
16:00 - 16:59 |
20 |
19 |
11 |
|
|
17:00 - 17:59 |
8 |
9 |
4 |
|
|
26/4/2023 |
15:00 - 15:59 |
66 |
19 |
14 |
|
16:00 - 16:59 |
42 |
21 |
16 |
|
|
17:00 - 17:59 |
24 |
27 |
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 |
