APPENDIX D AIR QUALITY MONITORING RESULTS
Site: Lamma Power
Station Extension
Month: April 2021
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. (%) |
|
|
6/4/2021 |
57 |
50 |
48 |
51 |
18.4 |
80 |
77 |
|
12/4/2021 |
26 |
22 |
20 |
14 |
11.8 |
50 |
80 |
|
18/4/2021 |
124 |
120 |
107 |
40 |
41.3 |
80 |
67 |
|
24/4/2021 |
31 |
33 |
25 |
36 |
21.1 |
80 |
82 |
|
30/4/2021 |
30 |
36 |
18 |
29 |
9.3 |
10 |
77 |
1 hour TSP Measurement:-
|
Date |
Time |
TSP concentration
(mg/m3) |
||
|
Reservoir (AM1) |
East Gate (AM2) |
Ash Lagoon (AM3) |
||
|
6/4/2021 |
15:00 - 15:59 |
49 |
50 |
47 |
|
16:00 - 16:59 |
57 |
52 |
45 |
|
|
17:00 - 17:59 |
56 |
50 |
45 |
|
|
12/4/2021 |
15:00 - 15:59 |
24 |
23 |
17 |
|
16:00 - 16:59 |
23 |
25 |
19 |
|
|
17:00 - 17:59 |
26 |
24 |
18 |
|
|
18/4/2021 |
15:00 - 15:59 |
170 |
168 |
149 |
|
16:00 - 16:59 |
186 |
180 |
144 |
|
|
17:00 - 17:59 |
194 |
179 |
144 |
|
|
24/4/2021 |
15:00 - 15:59 |
43 |
34 |
24 |
|
16:00 - 16:59 |
32 |
33 |
25 |
|
|
17:00 - 17:59 |
30 |
33 |
25 |
|
|
30/4/2021 |
15:00 - 15:59 |
40 |
46 |
18 |
|
16:00 - 16:59 |
33 |
36 |
18 |
|
|
17:00 - 17:59 |
28 |
27 |
18 |
|
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 |
