APPENDIX D AIR QUALITY MONITORING RESULTS
Site: Lamma Power
Station Extension
Month: April 2017
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. (%) |
|
|
04/04/2017 |
63 |
86 |
55 |
29 |
080 |
31.4 |
77 |
|
10/04/2017 |
40 |
46 |
20 |
13 (12/4)* |
200 |
27.7 |
83 |
|
16/04/2017 |
37 |
40 |
27 |
38 |
070 |
12.5 |
86 |
|
22/04/2017 |
48 |
70 |
29 |
8 |
010 |
26.1 |
84 |
|
28/04/2017 |
27 |
28 |
15 |
19 |
090 |
17.7 |
84 |
Note:
* - TSP
monitoring at AM4 (Tai Yuen Village) was suspended on 10/04/2017 due to breakdown
of MiniVol Portable Sampler. Make-up 24-hr
TSP sampling at AM4 was conducted on 12/04/2017.
1 hour TSP Measurement:-
|
Date |
Time |
TSP concentration
(mg/m3) |
||
|
Reservoir (AM1) |
East Gate (AM2) |
Ash Lagoon (AM3) |
||
|
04/04/2017 |
15:00 - 15:59 |
59 |
58 |
52 |
|
16:00 - 16:59 |
62 |
60 |
56 |
|
|
17:00 - 17:59 |
64 |
61 |
58 |
|
|
10/04/2017 |
15:00 - 15:59 |
62 |
29 |
16 |
|
16:00 - 16:59 |
26 |
32 |
9 |
|
|
17:00 - 17:59 |
31 |
33 |
20 |
|
|
16/04/2017 |
15:00 - 15:59 |
14 |
18 |
14 |
|
16:00 - 16:59 |
41 |
19 |
16 |
|
|
17:00 - 17:59 |
21 |
20 |
16 |
|
|
22/04/2017 |
15:00 - 15:59 |
37 |
43 |
24 |
|
16:00 - 16:59 |
37 |
46 |
30 |
|
|
17:00 - 17:59 |
38 |
48 |
33 |
|
|
28/04/2017 |
15:00 - 15:59 |
35 |
21 |
12 |
|
16:00 - 16:59 |
24 |
22 |
12 |
|
|
17:00 - 17:59 |
18 |
25 |
14 |
|
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 and East
Gate |
TEOM |
High Volume Air
Sampler |
|
Ash Lagoon |
TEOM |
TEOM |
|
Tai Yuen Village |
- |
MINIVOL Portable
Sampler |