APPENDIX D  AIR QUALITY MONITORING RESULTS

 

Site: Lamma Power Station Extension

 

Month: January 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.

 

(%)

3/1/2024

61

115

56

72

26.4

10

64

9/1/2024

54

72

42

57

11.8

40

77

15/1/2024

51

45

23

60

24.3

70

71

21/1/2024

35

45

29

60

23.9

360

68

27/1/2024

57

112

43

79

19.5

30

67

 

 

1 hour TSP Measurement:-

Date

Time

TSP concentration (mg/m3)

Reservoir

(AM1)

East Gate

(AM2)

Ash Lagoon

(AM3)

3/1/2024

15:00 - 15:59

68

170

62

16:00 - 16:59

54

126

58

17:00 - 17:59

45

99

53

9/1/2024

15:00 - 15:59

55

86

45

16:00 - 16:59

51

86

44

17:00 - 17:59

47

76

43

15/1/2024

15:00 - 15:59

42

55

27

16:00 - 16:59

61

60

35

17:00 - 17:59

51

52

29

21/1/2024

15:00 - 15:59

42

59

33

16:00 - 16:59

30

40

27

17:00 - 17:59

35

43

29

27/1/2024

15:00 - 15:59

84

165

61

16:00 - 16:59

83

159

58

17:00 - 17:59

66

128

52

                                                         

                                                                         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