APPENDIX D AIR QUALITY MONITORING RESULTS
Site: Lamma Power
Station Extension
Month: February 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. (%) |
|
|
06/02/2005 |
23 |
41 |
32 |
47 |
18.8 |
060 |
93 |
|
12/02/2005 |
47 |
44 |
46 |
54 |
26.4 |
070 |
80 |
|
18/02/2005 |
80 |
80 |
59 |
56 |
25.9 |
010 |
85 |
|
24/02/2005 |
66 |
50 |
81 |
72 |
7.0 |
030 |
93 |
1 hour TSP Measurement:-
|
Date |
Time |
TSP concentration (mg/m3) |
||
|
Reservoir (AM1) |
East Gate (AM2) |
Ash Lagoon (AM3) |
||
|
06/02/2005 |
15:00-15:59 |
43 |
34 |
35 |
|
16:00-16:59 |
36 |
21 |
43 |
|
|
17:00-17:59 |
24 |
24 |
16 |
|
|
12/02/2005 |
15:00-15:59 |
48 |
41 |
51 |
|
16:00-16:59 |
52 |
46 |
32 |
|
|
17:00-17:59 |
51 |
44 |
24 |
|
|
18/02/2005(1) |
15:00-15:59 |
36 |
43 |
87 (19/2) |
|
16:00-16:59 |
48 |
55 |
51 (19/2) |
|
|
17:00-17:59 |
51 |
52 |
52 (19/2) |
|
|
24/02/2005 |
15:00-15:59 |
66 |
85 |
75 |
|
16:00-16:59 |
61 |
61 |
52 |
|
|
17:00-17:59 |
55 |
47 |
65 |
|
Remark:
(1)
The monitoring stations, Reservoir, East Gate
& Ash Lagoon are located within Lamma Power Station.
(2)
TEOM 1-hr TSP sampler at AM3 (Ash Lagoon) was
found defective on 18/02/2005. A
make-up 1hr TSP sampling for AM3 was carried out on 19/02/2005.
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 |