APPENDIX D  AIR QUALITY MONITORING RESULTS

 

Site: Lamma Power Station Extension

 

Month: August 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.

 

(%)

6/8/2024

32

36

30

24

4.9

30

78

12/8/2024

21

26

12

6

11.8

230

85

18/8/2024

23

29

14

14

27.7

230

87

24/8/2024

22

27

16

8

10.0

240

77

30/8/2024

23

27

18

24

19.5

90

82

 

1 hour TSP Measurement:-

Date

Time

TSP concentration (mg/m3)

Reservoir

(AM1)

East Gate

(AM2)

Ash Lagoon

(AM3)

6/8/2024

15:00 - 15:59

35

33

34

16:00 - 16:59

25

29

39

17:00 - 17:59

32

34

52

12/8/2024

15:00 - 15:59

7

25

11

16:00 - 16:59

22

33

14

17:00 - 17:59

24

29

14

18/8/2024

15:00 - 15:59

24

31

12

16:00 - 16:59

27

32

11

17:00 - 17:59

21

33

15

24/8/2024

15:00 - 15:59

24

27

17

16:00 - 16:59

36

28

15

17:00 - 17:59

28

24

14

30/8/2024

15:00 - 15:59

26

28

18

16:00 - 16:59

19

24

20

17:00 - 17:59

26

23

16

                                                         

                                                                         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