APPENDIX D  AIR QUALITY MONITORING RESULTS

 

Site: Lamma Power Station Extension

 

Month: November 2016

 

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.

 

(%)

5/11/2016

57

58

51

44

13.4

100

77

11/11/2016

25

50

36

44

20.6

020

80

17/11/2016

64

69

57

51

26.7

070

78

23/11/2016

13

13

9

37

42.1

050

93

29/11/2016

72

88

71

69

27.0

020

66

 

1 hour TSP Measurement:-

Date

Time

TSP concentration (mg/m3)

Reservoir

(AM1)

East Gate

(AM2)

Ash Lagoon

(AM3)

05/11/2016

15:00-15:59

52

48

56

16:00-16:59

54

48

45

17:00-17:59

53

50

35

11/11/2016

15:00-15:59

58

58

52

16:00-16:59

60

50

52

17:00-17:59

44

37

44

17/11/2016

15:00-15:59

77

90

65

16:00-16:59

87

72

71

17:00-17:59

72

59

57

23/11/2016

15:00-15:59

8

8

3

16:00-16:59

8

9

3

17:00-17:59

11

11

3

29/11/2016

15:00-15:59

87

109

109

16:00-16:59

88

101

105

17:00-17:59

87

94

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