APPENDIX D  AIR QUALITY MONITORING RESULTS

 

Site: Lamma Power Station Extension

 

Month: February 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.

 

(%)

2/2/2024

16

28

12

81

15.5

60

88

8/2/2024

13

37

13

14

22.8

360

84

14/2/2024

41

61

37

19

11.7

30

78

20/2/2024

18

29

17

11

9.2

100

87

26/2/2024

64

80

32

15

20.5

40

76

 

 

1 hour TSP Measurement:-

Date

Time

TSP concentration (mg/m3)

Reservoir

(AM1)

East Gate

(AM2)

Ash Lagoon

(AM3)

2/2/2024

15:00 - 15:59

11

21

11

16:00 - 16:59

20

25

13

17:00 - 17:59

14

27

13

8/2/2024

15:00 - 15:59

12

23

14

16:00 - 16:59

13

27

14

17:00 - 17:59

12

26

15

14/2/2024

15:00 - 15:59

35

54

31

16:00 - 16:59

35

55

32

17:00 - 17:59

33

56

33

20/2/2024

15:00 - 15:59

21

30

18

16:00 - 16:59

23

30

17

17:00 - 17:59

22

27

16

26/2/2024

15:00 - 15:59

33

46

24

16:00 - 16:59

33

47

24

17:00 - 17:59

34

51

30

                                                         

                                                                         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