APPENDIX D  AIR QUALITY MONITORING RESULTS

 

Site: Lamma Power Station Extension

 

Month: May 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.

 

(%)

5/5/2018

50

47

45

39

24.7

060

82

11/5/2018

54

54

50

46

34

070

86

17/5/2018

29

20

15

22

16.5

200

75

23/5/2018

32

35

18

32

16.2

220

69

29/5/2018

28

65

29

46

21.5

250

69

 

 

 

1 hour TSP Measurement:-

Date

Time

TSP concentration (mg/m3)

Reservoir

(AM1)

East Gate

(AM2)

Ash Lagoon

(AM3)

5/5/2018

15:00 - 15:59

57

50

52

16:00 - 16:59

61

49

49

17:00 - 17:59

53

43

43

11/5/2018

15:00 - 15:59

65

58

56

16:00 - 16:59

64

59

53

17:00 - 17:59

62

59

55

17/5/2018

15:00 - 15:59

25

20

14

16:00 - 16:59

25

24

15

17:00 - 17:59

45

26

16

23/5/2018

15:00 - 15:59

69

53

42

16:00 - 16:59

64

44

33

17:00 - 17:59

42

33

18

29/5/2018

15:00 - 15:59

38

153

65

16:00 - 16:59

25

103

39

17:00 - 17:59

18

61

6

 

 

 

 

 

 

 

                                                                               

                                                                 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