APPENDIX D  AIR QUALITY MONITORING RESULTS

 

Site: Lamma Power Station Extension

 

Month: June 2024

 

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.

 

(%)

1/6/2024

17

22

18

28

37.7

230

88

7/6/2024

15

17

16

18

29.7

70

92

13/6/2024

12

35

26

6

28.2

220

83

19/6/2024

16

23

14

10

17.7

180

80

25/6/2024

15

20

12

19

18.1

150

79

 

 

1 hour TSP Measurement:-

Date

Time

TSP concentration (mg/m3)

Reservoir

(AM1)

East Gate

(AM2)

Ash Lagoon

(AM3)

1/6/2024

15:00 - 15:59

16

23

15

16:00 - 16:59

18

24

15

17:00 - 17:59

12

22

14

7/6/2024

15:00 - 15:59

10

23

23

16:00 - 16:59

11

23

22

17:00 - 17:59

11

21

20

13/6/2024

15:00 - 15:59

10

37

24

16:00 - 16:59

10

38

25

17:00 - 17:59

10

36

24

19/6/2024

15:00 - 15:59

15

28

15

16:00 - 16:59

13

19

13

17:00 - 17:59

10

26

13

25/6/2024

15:00 - 15:59

15

29

11

16:00 - 16:59

12

25

8

17:00 - 17:59

9

17

12

                                                         

                                                                         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, East Gate and Ash Lagoon

TEOM

TEOM

Tai Yuen Village

-

MINIVOL Portable Sampler