APPENDIX D  AIR QUALITY MONITORING RESULTS

 

Site: Lamma Power Station Extension

 

Month: April 2006

 

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.

 

(%)

02/04/2006

79

59

75

85

4.3

340

88

08/04/2006

62

55

82

90

24.0

070

73

14/04/2006

91

85

87

83

18.9

030

87

20/04/2006

125

97

93

115

18.8

090

84

26/04/2006

33

34

33

46

16.2

220

83

 

1 hour TSP Measurement:-

Date

Time

TSP concentration (mg/m3)

Reservoir

(AM1)

East Gate

(AM2)

Ash Lagoon

(AM3)

02/04/2006

15:00-15:59

96

63

63

16:00-16:59

52

54

39

17:00-17:59

48

52

49

08/04/2006

15:00-15:59

75

84

69

16:00-16:59

71

80

45

17:00-17:59

65

70

51

14/04/2006

15:00-15:59

95

114

88

16:00-16:59

108

140

99

17:00-17:59

114

131

99

20/04/2006

15:00-15:59

108

107

103

16:00-16:59

168

154

159

17:00-17:59

171

165

168

26/04/2006

15:00-15:59

29

30

19

16:00-16:59

31

40

23

17:00-17:59

32

36

27

 

 

                                                                        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 1400a

High Volume Air Sampler

Ash Lagoon

Partisol Model 2000 Sampler

Tai Yuen Village

-

MINIVOL Portable Sampler