APPENDIX D AIR QUALITY MONITORING RESULTS
Site: Lamma Power
Station Extension
Month: November 2017
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. (%) |
|
|
6/11/2017 |
63 |
69 |
76 |
79 |
28.3 |
60 |
68 |
|
12/11/2017 |
35 |
41 (14/11)* |
40 |
54 |
44.1 |
70 |
87 |
|
18/11/2017 |
53 |
41 |
33 |
63 |
20.2 |
360 |
83 |
|
24/11/2017 |
73 |
83 |
68 |
22 |
28.5 |
360 |
65 |
|
30/11/2017 |
38 |
41 |
22 |
71 |
35 |
70 |
90 |
Note:
* - TSP monitoring at AM2 (East
Gate) was suspended on 12/11/2017 due to the defective blower of the High Volume
Air Sampler. Make-up 24-hr TSP sampling at AM2 was conducted on 14/11/2017.
1 hour TSP Measurement:-
|
Date |
Time |
TSP concentration
(mg/m3) |
||
|
Reservoir (AM1) |
East Gate (AM2) |
Ash Lagoon (AM3) |
||
|
06/11/2017 |
15:00 - 15:59 |
42 |
52 |
59 |
|
16:00 - 16:59 |
33 |
82 |
62 |
|
|
17:00 - 17:59 |
34 |
133 |
76 |
|
|
12/11/2017 |
15:00 - 15:59 |
17 |
17 |
14 |
|
16:00 - 16:59 |
6 |
7 |
12 |
|
|
17:00 - 17:59 |
17 |
15 |
15 |
|
|
18/11/2017 |
15:00 - 15:59 |
11 |
20 (20/11)* |
24 |
|
16:00 - 16:59 |
28 |
18 (20/11)* |
42 |
|
|
17:00 - 17:59 |
39 |
30 (20/11)* |
50 |
|
|
24/11/2017 |
15:00 - 15:59 |
44 |
41 |
55 |
|
16:00 - 16:59 |
44 |
47 |
50 |
|
|
17:00 - 17:59 |
33 |
37 |
48 |
|
|
30/11/2017 |
15:00 - 15:59 |
21 |
24 |
37 |
|
16:00 - 16:59 |
36 |
33 |
44 |
|
|
17:00 - 17:59 |
35 |
37 |
38 |
|
Note:
* - TSP monitoring at AM2 (East
Gate) was suspended on 18/11/2017 due to the breakdown of the TEOM TSP sampler.
Make-up 1-hr TSP sampling at AM2 was conducted on 20/11/2017.
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 |
High Volume Air
Sampler |
|
Ash Lagoon |
TEOM |
TEOM |
|
Tai Yuen Village |
- |
MINIVOL Portable
Sampler |
