APPENDIX D  AIR QUALITY MONITORING RESULTS

 

Site: Lamma Power Station Extension

 

Month: February 2017

 

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.

 

(%)

03/02/2017

37

45

38

29

(1)

(1)

76

09/02/2017

79

89

35

28

(1)

(1)

56

15/02/2017

36

38

39

46

(1)

(1)

62

21/02/2017

43

39

28

56

(1)

(1)

90

27/02/2017

63

53

46

36

(1)

(1)

66

 

Note: (1) Weather information from Hong Kong Observatory not available.

 

 

1 hour TSP Measurement:-

Date

Time

TSP concentration (mg/m3)

Reservoir

(AM1)

East Gate

(AM2)

Ash Lagoon

(AM3)

03/02/2017

15:00 - 15:59

31

42

47

16:00 - 16:59

50

50

54

17:00 - 17:59

48

46

46

9/02/2017

15:00 - 15:59

70

92

62

16:00 - 16:59

64

84

60

17:00 - 17:59

61

74

53

15/02/2017

15:00 - 15:59

44

32

27

16:00 - 16:59

32

41

38

17:00 - 17:59

58

52

62

21/02/2017

15:00 - 15:59

29

33

26

16:00 - 16:59

27

29

27

17:00 - 17:59

22

23

27

27/02/2017

15:00 - 15:59

39

46

49

16:00 - 16:59

58

57

65

17:00 - 17:59

64

62

70

 

                                                                        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 and East Gate

TEOM

High Volume Air Sampler

Ash Lagoon

TEOM

TEOM

Tai Yuen Village

-

MINIVOL Portable Sampler