APPENDIX D  AIR QUALITY MONITORING RESULTS

 

Site: Lamma Power Station Extension

 

Month: March 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.

 

(%)

1/3/2019

31

57

29

21

30.6

060

89

7/3/2019

8

45

11

7

39.5

040

93

13/3/2019

52

64

49

33

30

050

71

19/3/2019

37

66

36

24

9

100

84

25/3/2019

32

17

25

33

19.1

060

85

31/3/2019

45

39

44

31

44.3

070

85

 

1 hour TSP Measurement:-

Date

Time

TSP concentration (mg/m3)

Reservoir

(AM1)

East Gate

(AM2)

Ash Lagoon

(AM3)

1/3/2019

15:00 - 15:59

31

62

30

16:00 - 16:59

33

62

33

17:00 - 17:59

38

58

37

7/3/2019

15:00 - 15:59

9

19

16

16:00 - 16:59

14

19

11

17:00 - 17:59

9

26

4

13/3/2019

15:00 - 15:59

65

106

57

16:00 - 16:59

62

132

51

17:00 - 17:59

56

113

49

19/3/2019

15:00 - 15:59

32

51

28

16:00 - 16:59

35

54

29

17:00 - 17:59

35

54

30

25/3/2019

15:00 - 15:59

33

51

27

16:00 - 16:59

39

54

30

17:00 - 17:59

46

54

33

31/3/2019

15:00 - 15:59

68

47

68

16:00 - 16:59

77

44

68

17:00 - 17:59

69

42

68

 

                                                              

 

 

 

                                                                         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