APPENDIX D  AIR QUALITY MONITORING RESULTS

 

Site: Lamma Power Station Extension

 

Month: November 2018

 

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.

 

(%)

1/11/2018

79

77

70

86

42.7

360

45

7/11/2018

30

31

32

54

29.0

70

75

13/11/2018

41

35

39

58

29.8

70

76

19/11/2018

35

34

36

50

21.5

10

75

25/11/2018

35

33

33

44

24.6

40

84

 

 

 

 

1 hour TSP Measurement:-

Date

Time

TSP concentration (mg/m3)

Reservoir

(AM1)

East Gate

(AM2)

Ash Lagoon

(AM3)

1/11/2018

15:00 - 15:59

120

107

92

16:00 - 16:59

106

95

81

17:00 - 17:59

112

86

80

7/11/2018

15:00 - 15:59

25

28

37

16:00 - 16:59

31

32

32

17:00 - 17:59

45

36

38

13/11/2018

15:00 - 15:59

46

32

33

16:00 - 16:59

40

29

31

17:00 - 17:59

38

28

32

19/11/2018

15:00 - 15:59

61

33

31

16:00 - 16:59

35

16

16

17:00 - 17:59

35

26

27

25/11/2018

15:00 - 15:59

23

22

20

16:00 - 16:59

22

22

21

17:00 - 17:59

18

22

20

 

 

 

 

 

 

                                               

                                                                 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