APPENDIX D AIR QUALITY MONITORING RESULTS
Site: Lamma Power
Station Extension
Month: August 2005
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. (%) |
|
|
05/08/2005 |
43 |
75 |
37 |
43 |
25.8 |
260 |
78 |
|
11/08/2005 |
31 |
43 |
31 |
31 |
26.2 |
100 |
86 |
|
17/08/2005 |
17 |
28 |
18 |
24 |
20.0 |
110 |
96 |
|
23/08/2005 |
40 |
37 |
86 |
39 |
15.6 |
230 |
80 |
|
29/08/2005 |
21 |
* |
20 |
33 |
22.6 |
100 |
89 |
|
31/08/2005 |
- |
65 |
- |
- |
18.1 |
270 |
76 |
1 hour TSP Measurement:-
|
Date |
Time |
TSP concentration (mg/m3) |
||
|
Reservoir (AM1) |
East Gate (AM2) |
Ash Lagoon (AM3) |
||
|
05/08/2005 |
15:00-15:59 |
34 |
49 |
37 |
|
16:00-16:59 |
64 |
122 |
71 |
|
|
17:00-17:59 |
57 |
138 |
59 |
|
|
11/08/2005 |
15:00-15:59 |
29 |
32 |
25 |
|
16:00-16:59 |
32 |
34 |
56 |
|
|
17:00-17:59 |
33 |
35 |
40 |
|
|
17/08/2005 |
15:00-15:59 |
4 |
20 |
6 |
|
16:00-16:59 |
9 |
15 |
4 |
|
|
17:00-17:59 |
15 |
18 |
19 |
|
|
23/08/2005 |
15:00-15:59 |
31 |
36 |
27 |
|
16:00-16:59 |
35 |
34 |
22 |
|
|
17:00-17:59 |
37 |
21 |
21 |
|
|
29/08/2005 |
15:00-15:59 |
21 |
47 |
19 |
|
16:00-16:59 |
18 |
28 |
15 |
|
|
17:00-17:59 |
14 |
17 |
16 |
|
* - 24-hr Partisol TSP sampler at AM2 (East Gate) was found defective on
30/08/2005, during the collection of filter sample. Defect was rectified on the same day. A 24-hr TSP make-up sampling was
conducted on 31/08/2005.
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 1400a |
High Volume Air Sampler |
|
Ash Lagoon |
Partisol Model 2000 Sampler |
|
|
Tai Yuen Village |
- |
MINIVOL Portable Sampler |