APPENDIX D  AIR QUALITY MONITORING RESULTS

 

Site: Lamma Power Station Extension

 

Month: March 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.

 

(%)

3/3/2024

35

49

20

21

29.3

60

81

9/3/2024

60

108

34

21

45.9

70

73

15/3/2024

68

103

59

64

28.0

60

79

21/3/2024

71

100

49

53

25.3

70

65

27/3/2024

35

40

23

33

29.6

70

82

 

 

1 hour TSP Measurement:-

Date

Time

TSP concentration (mg/m3)

Reservoir

(AM1)

East Gate

(AM2)

Ash Lagoon

(AM3)

3/3/2024

15:00 - 15:59

46

67

28

16:00 - 16:59

61

74

31

17:00 - 17:59

57

75

30

9/3/2024

15:00 - 15:59

60

110

35

16:00 - 16:59

64

117

39

17:00 - 17:59

67

121

41

15/3/2024

15:00 - 15:59

74

109

63

16:00 - 16:59

75

109

64

17:00 - 17:59

76

104

66

21/3/2024

15:00 - 15:59

70

103

49

16:00 - 16:59

70

103

49

17:00 - 17:59

73

101

50

27/3/2024

15:00 - 15:59

36

48

23

16:00 - 16:59

34

47

23

17:00 - 17:59

33

46

23

                                                         

                                                                         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