APPENDIX D AIR QUALITY MONITORING RESULTS
Site: Lamma Power
Station Extension
Month: March 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. (%) |
|
|
01/03/2003 |
40 |
36 |
40 |
46 |
9.3 |
030 |
86 |
|
07/03/2003 |
83 |
94 |
(2) |
57 |
27.0 |
010 |
67 |
|
11/03/2003 |
- |
- |
69 |
- |
31.1 |
090 |
66 |
|
13/03/2003 |
46 |
40 |
38 |
47 |
24.7 |
060 |
80 |
|
19/03/2003 |
36 |
37 |
38 |
29 |
28.4 |
040 |
84 |
|
25/03/2003 |
46 |
42 |
43 |
43 |
19.7 |
040 |
83 |
|
31/03/2003 |
36 |
32 |
30 |
31 |
9.7 |
040 |
85 |
1 hour TSP Measurement:-
|
Date |
Time |
TSP concentration (mg/m3) |
||
|
Reservoir (AM1) |
East Gate (AM2) |
Ash Lagoon (AM3) |
||
|
01/03/2003 |
15:00-15:59 |
21 |
23 |
18 |
|
16:00-16:59 |
34 |
43 |
23 |
|
|
17:00-17:59 |
37 |
42 |
30 |
|
|
07/03/2003 |
15:00-15:59 |
77 |
110 |
81 |
|
16:00-16:59 |
85 |
112 |
87 |
|
|
17:00-17:59 |
80 |
105 |
77 |
|
|
13/03/2003 |
15:00-15:59 |
51 |
49 |
51 |
|
16:00-16:59 |
55 |
51 |
54 |
|
|
17:00-17:59 |
45 |
43 |
52 |
|
|
19/03/2003 |
15:00-15:59 |
35 |
35 |
33 |
|
16:00-16:59 |
42 |
40 |
41 |
|
|
17:00-17:59 |
48 |
44 |
45 |
|
|
25/03/2003 |
15:00-15:59 |
40 |
43 |
40 |
|
16:00-16:59 |
53 |
53 |
51 |
|
|
17:00-17:59 |
48 |
48 |
50 |
|
|
31/03/2003 |
15:00-15:59 |
27 |
25 |
20 |
|
16:00-16:59 |
40 |
31 |
27 |
|
|
17:00-17:59 |
31 |
31 |
27 |
|
Remark:
(1)
The monitoring stations, Reservoir, East Gate
& Ash Lagoon are located within Lamma Power Station.
(2)
Partisol TSP sampler at AM3 (Ash Lagoon) was
found defective during the collection of filter paper on 10/03/2003. The defect
was rectified on the same day. A
24 hour TSP make-up sampling was performed on 11/03/2003.
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 |