APPENDIX D  AIR QUALITY MONITORING RESULTS

 

Site: Lamma Power Station Extension

 

Month: November 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.

 

(%)

4/11/2024

54

51

33

26

21.5

80

75

10/11/2024

25

27

16

15

37.5

60

80

16/11/2024

21

27

13

8

6.2

90

88

22/11/2024

31

47

20

6

24.5

360

74

28/11/2024

41

48

32

18

32.1

360

36

 

1 hour TSP Measurement:-

Date

Time

TSP concentration (mg/m3)

Reservoir

(AM1)

East Gate

(AM2)

Ash Lagoon

(AM3)

4/11/2024

15:00 - 15:59

59

71

34

16:00 - 16:59

57

62

36

17:00 - 17:59

65

51

36

10/11/2024

15:00 - 15:59

27

36

27

16:00 - 16:59

33

43

29

17:00 - 17:59

42

49

33

16/11/2024

15:00 - 15:59

30

31

13

16:00 - 16:59

29

31

16

17:00 - 17:59

36

29

18

22/11/2024

15:00 - 15:59

48

77

43

16:00 - 16:59

46

60

37

17:00 - 17:59

39

45

34

28/11/2024

15:00 - 15:59

44

58

40

16:00 - 16:59

45

76

41

17:00 - 17:59

51

81

34

                                                         

                                                                         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