APPENDIX D  AIR QUALITY MONITORING RESULTS

 

Site: Lamma Power Station Extension

 

Month: October 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.

 

(%)

5/10/2024

36

43

23

10

20.0

360

63

11/10/2024

35

30

16

35

23.6

80

79

17/10/2024

33

33

15

19

32.0

80

77

23/10/2024

49

63

24

42

40.5

360

57

29/10/2024

29

28

24

6

19.0

40

69

 

1 hour TSP Measurement:-

Date

Time

TSP concentration (mg/m3)

Reservoir

(AM1)

East Gate

(AM2)

Ash Lagoon

(AM3)

5/10/2024

15:00 - 15:59

36

52

27

16:00 - 16:59

43

52

28

17:00 - 17:59

42

44

27

11/10/2024

15:00 - 15:59

43

37

23

16:00 - 16:59

44

38

25

17:00 - 17:59

45

38

25

17/10/2024

15:00 - 15:59

36

53

18

16:00 - 16:59

39

33

16

17:00 - 17:59

50

31

17

23/10/2024

15:00 - 15:59

33

69

29

16:00 - 16:59

39

66

30

17:00 - 17:59

39

65

30

29/10/2024

15:00 - 15:59

31

42

41

16:00 - 16:59

38

47

41

17:00 - 17:59

38

45

39

                                                         

                                                                         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