APPENDIX D  AIR QUALITY MONITORING RESULTS

 

Site: Lamma Power Station Extension

 

Month: December 2019

 

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.

 

(%)

2/12/2019

67

118

64

85

44

360

54

8/12/2019

42

47

35

21

23

90

47

14/12/2019

44

44

36

44

26

60

75

20/12/2019

42

43

39

47

24

70

78

26/12/2019

75

83

71

78

19

360

73

 

 

1 hour TSP Measurement:-

Date

Time

TSP concentration (mg/m3)

Reservoir

(AM1)

East Gate

(AM2)

Ash Lagoon

(AM3)

2/12/2019

15:00 - 15:59

96

155

81

16:00 - 16:59

68

102

66

17:00 - 17:59

40

90

62

8/12/2019

15:00 - 15:59

50

70

42

16:00 - 16:59

69

54

39

17:00 - 17:59

54

47

46

14/12/2019

15:00 - 15:59

35

45

51

16:00 - 16:59

56

56

56

17:00 - 17:59

50

60

44

20/12/2019

15:00 - 15:59

31

39

28

16:00 - 16:59

31

34

31

17:00 - 17:59

36

34

41

26/12/2019

15:00 - 15:59

115

125

117

16:00 - 16:59

106

124

118

17:00 - 17:59

109

110

93

                                                          

 

 

 

 

 

 

 

 

 

                                                                         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