APPENDIX D  AIR QUALITY MONITORING RESULTS

 

Site: Lamma Power Station Extension

 

Month: October 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.

 

(%)

3/10/2019

42

58

34

26

16.2

220

67

9/10/2019

43

48

40

42

32.8

80

75

15/10/2019

35

44

37

11

47.1

70

74

21/10/2019

50

49

42

28

18.2

80

72

27/10/2019

65

64

58

67

21.6

80

76

 

 

1 hour TSP Measurement:-

Date

Time

TSP concentration (mg/m3)

Reservoir

(AM1)

East Gate

(AM2)

Ash Lagoon

(AM3)

3/10/2019

15:00 - 15:59

55

51

29

16:00 - 16:59

45

63

27

17:00 - 17:59

38

44

26

9/10/2019

15:00 - 15:59

47

46

42

16:00 - 16:59

49

48

43

17:00 - 17:59

50

48

41

15/10/2019

15:00 - 15:59

35

48

35

16:00 - 16:59

36

47

40

17:00 - 17:59

45

55

44

21/10/2019

15:00 - 15:59

46

44

47

16:00 - 16:59

44

48

47

17:00 - 17:59

47

48

51

27/10/2019

15:00 - 15:59

69

59

58

16:00 - 16:59

65

65

59

17:00 - 17:59

70

72

61

                                                          

 

 

 

 

 

 

 

 

 

                                                                         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