APPENDIX D AIR QUALITY MONITORING RESULTS
Site: Lamma Power
Station Extension
Month: May 2004
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. (%) |
|
|
04/05/2004 |
98(2) |
- |
- |
- |
14.1 |
020 |
83 |
|
06/05/2004 |
52 |
48 |
49 |
47 |
21.3 |
090 |
82 |
|
12/05/2004 |
24 |
21 |
17 |
19 |
10.7 |
190 |
81 |
|
18/05/2004 |
58 |
53 |
57 |
67 |
13.9 |
060 |
82 |
|
24/05/2004 |
58 |
53 |
51 |
49 |
26.0 |
090 |
73 |
|
30/05/2004 |
23 |
38 |
16 |
19 |
14.4 |
180 |
81 |
1 hour TSP Measurement:-
|
Date |
Time |
TSP concentration (mg/m3) |
||
|
Reservoir (AM1) |
East Gate (AM2) |
Ash Lagoon (AM3) |
||
|
06/05/2004 |
15:00-15:59 |
55 |
56 |
57 |
|
16:00-16:59 |
46 |
43 |
48 |
|
|
17:00-17:59 |
40 |
41 |
42 |
|
|
12/05/2004 |
15:00-15:59 |
20 |
92 |
8 |
|
16:00-16:59 |
13 |
13 |
5 |
|
|
17:00-17:59 |
17 |
17 |
11 |
|
|
18/05/2004 |
15:00-15:59 |
64 |
60 |
61 |
|
16:00-16:59 |
64 |
61 |
61 |
|
|
17:00-17:59 |
60 |
53 |
56 |
|
|
24/05/2004 |
15:00-15:59 |
87 |
70 |
84 |
|
16:00-16:59 |
69 |
60 |
68 |
|
|
17:00-17:59 |
71 |
66 |
66 |
|
|
30/05/2004 |
15:00-15:59 |
18 |
20 |
22 |
|
16:00-16:59 |
24 |
20 |
26 |
|
|
17:00-17:59 |
19 |
22 |
20 |
|
Remark:
(1)
The monitoring stations, Reservoir, East Gate
& Ash Lagoon are located within Lamma Power Station.
(2) Make
up sampling for the dust sampling at Reservoir Area originally scheduled on
30/4/2004 due to the malfunction of HVAS.
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 |