APPENDIX D AIR QUALITY
MONITORING RESULTS
Site: Lamma Power Station Extension
Month: October 2016
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. (%) |
|
|
6/10/2016 |
48 |
47 |
38 |
42 |
*** |
*** |
75 |
|
12/10/2016 |
27 |
29 |
22 |
6 |
*** |
*** |
84 |
|
18/10/2016 |
15 |
25 |
17 |
13 |
*** |
*** |
96 |
|
24/10/2016 |
20 |
23 |
13 |
22 |
*** |
*** |
88 |
|
30/10/2016 |
61(2/11) |
51 |
43 (29/10)* |
61 |
*** |
*** |
74 |
***- wind data not
available from Hong Kong Observatory
# - 24hr TSP
measurement at AM1 (Reservoir) was suspended on 30/10/2016 due to equipment
failure. A make-up sample for AM1 was
conducted on 2/11/2016.
1 hour TSP Measurement:-
|
Date |
Time |
TSP concentration
(mg/m3) |
||
|
Reservoir (AM1) |
East Gate (AM2) |
Ash Lagoon (AM3) |
||
|
06/10/2016 |
15:00-15:59 |
75 |
76 |
43 |
|
16:00-16:59 |
77 |
68 |
54 |
|
|
17:00-17:59 |
93 |
66 |
82 |
|
|
12/10/2016 |
15:00-15:59 |
33 |
32 |
29 |
|
16:00-16:59 |
25 |
29 |
26 |
|
|
17:00-17:59 |
24 |
29 |
28 |
|
|
18/10/2016 |
15:00-15:59 |
18 |
25 |
22 |
|
16:00-16:59 |
22 |
25 |
23 |
|
|
17:00-17:59 |
14 |
21 |
26 |
|
|
24/10/2016 |
15:00-15:59 |
13 |
13 |
8 |
|
16:00-16:59 |
14 |
15 |
29 |
|
|
17:00-17:59 |
13 |
14 |
12 |
|
|
30/10/2016 |
15:00-15:59 |
31 |
40 |
31(29/10)* |
|
16:00-16:59 |
35 |
51 |
37(29/10)* |
|
|
17:00-17:59 |
45 |
57 |
42(29/10)* |
|
* - TSP monitoring
at AM3 (Ash Lagoon) was suspended on 30/10/2016 due to suspension of power
supply. TSP sampling at AM3 was advanced
to 29/10/2016.
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 |