APPENDIX D AIR QUALITY MONITORING RESULTS
Site: Lamma Power
Station Extension
Month: November 2003
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. (%) |
|
|
02/11/2003 (2) |
204 |
193 |
230 |
246 |
6.9 |
010 |
75 |
|
08/11/2003 |
21 |
20 |
20 |
11 |
30.1 |
040 |
92 |
|
14/11/2003 |
76 |
75 |
81 |
76 |
29.3 |
070 |
75 |
|
20/11/2003 |
31 |
32 |
37 |
38 |
13.4 |
070 |
92 |
|
26/11/2003 |
61 |
62 |
62 |
69 |
25.0 |
080 |
72 |
1 hour TSP Measurement:-
|
Date |
Time |
TSP concentration (mg/m3) |
||
|
Reservoir (AM1) |
East Gate (AM2) |
Ash Lagoon (AM3) |
||
|
02/11/2003 |
15:00-15:59 |
238 |
264 |
235 |
|
16:00-16:59 |
285 |
289 |
232 |
|
|
17:00-17:59 |
272 |
276 |
297 |
|
|
08/11/2003 |
15:00-15:59 |
0 |
0 |
0 |
|
16:00-16:59 |
9 |
19 |
13 |
|
|
17:00-17:59 |
6 |
0 |
4 |
|
|
14/11/2003 |
15:00-15:59 |
70 |
68 |
76 |
|
16:00-16:59 |
71 |
73 |
67 |
|
|
17:00-17:59 |
66 |
57 |
67 |
|
|
20/11/2003 |
15:00-15:59 |
39 |
36 |
43 |
|
16:00-16:59 |
43 |
39 |
45 |
|
|
17:00-17:59 |
41 |
36 |
47 |
|
|
26/11/2003 |
15:00-15:59 |
87 |
81 |
70 |
|
16:00-16:59 |
72 |
82 |
66 |
|
|
17:00-17:59 |
74 |
68 |
77 |
|
Remark:
(1)
The monitoring stations, Reservoir, East Gate
& Ash Lagoon are located within Lamma Power Station.
(2)
As the general APIs were high and no
significant dusty site activity was carried out on 2/11/2003, it
is considered that the high
TSP recorded at
various stations were not related to the site activities but owing to hazy
weather. Hence no further action
is required.
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 |