APPENDIX D AIR QUALITY MONITORING RESULTS
Site: Lamma Power
Station Extension
Month: February 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. (%) |
|
|
05/02/2003 |
66 |
58 |
60 |
56 |
26.0 |
010 |
60 |
|
11/02/2003 |
63 |
53 |
54 |
54 |
23.2 |
040 |
85 |
|
17/02/2003 |
(2) |
33 |
35 |
31 |
28.8 |
060 |
88 |
|
19/02/2003 |
54 |
- |
- |
- |
11.9 |
040 |
85 |
|
23/02/2003 |
38 |
40 |
40 |
40 |
3.9 |
220 |
82 |
1 hour TSP Measurement:-
|
Date |
Time |
TSP concentration (mg/m3) |
||
|
Reservoir (AM1) |
East Gate (AM2) |
Ash Lagoon (AM3) |
||
|
05/02/2003 |
15:00-15:59 |
60 |
66 |
72 |
|
16:00-16:59 |
64 |
68 |
67 |
|
|
17:00-17:59 |
63 |
63 |
68 |
|
|
11/02/2003 |
15:00-15:59 |
62 |
52 |
48 |
|
16:00-16:59 |
61 |
61 |
57 |
|
|
17:00-17:59 |
58 |
49 |
52 |
|
|
17/02/2003 |
15:00-15:59 |
31 |
31 |
33 |
|
16:00-16:59 |
29 |
28 |
31 |
|
|
17:00-17:59 |
31 |
29 |
32 |
|
|
23/02/2003 |
15:00-15:59 |
32 |
37 |
42 |
|
16:00-16:59 |
38 |
34 |
36 |
|
|
17:00-17:59 |
37 |
34 |
35 |
|
Remark:
(1)
The monitoring stations, Reservoir, East Gate
& Ash Lagoon are located within Lamma Power Station.
(2)
High Volume Air Sampler (HVAS) at AM1 (Reservoir)
was found defective during the collection of filter paper on 18/02/2003. The
defect was rectified on the same day.
A 24 hour TSP make-up sampling was performed on 19/02/2003.
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 |