APPENDIX D  AIR QUALITY MONITORING RESULTS

 

Site: Lamma Power Station Extension

 

Month: January 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.

 

(%)

02/01/2006

66

70

62

94

19.6

090

80

08/01/2006

130

120

121

129

29.5

050

61

14/01/2006

58

56

54

89

18.7

050

86

20/01/2006

56

53

48

61

23.5

030

94

26/01/2006

103

97

94

71

22.5

020

64

 

1 hour TSP Measurement:-

Date

Time

TSP concentration (mg/m3)

Reservoir

(AM1)

East Gate

(AM2)

Ash Lagoon

(AM3)

02/01/2006

15:00-15:59

62

65

56

16:00-16:59

60

62

66

17:00-17:59

70

73

73

08/01/2006

15:00-15:59

132

131

114

16:00-16:59

115

122

106

17:00-17:59

117

124

103

14/01/2006

15:00-15:59

56

51

36

16:00-16:59

50

50

45

17:00-17:59

52

49

46

20/01/2006

15:00-15:59

54

44

37

16:00-16:59

44

28

29

17:00-17:59

29

23

25

26/01/2006

15:00-15:59

106

104

92

16:00-16:59

109

118

95

17:00-17:59

108

118

101

 

 

 

                                                                        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