APPENDIX D  AIR QUALITY MONITORING RESULTS FOR DECEMBER 2001

 

Site: Lamma Power Station Extension

 

Month: December 2001

 

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.

 

(%)

06/12/2001

127

132

94

69

23.3

020

75

12/12/2001

38

36

43

57

23.3

060

84

18/12/2001

44

43

47

44

23.8

010

92

24/12/2001

61

59

77

53

21.3

060

56

30/12/2001

102

99

115

83

16.8

050

63

 

1 hour TSP Measurement:-

Date

Time

TSP concentration (mg/m3)

Reservoir

(AM1)

East Gate

(AM2)

Ash Lagoon

(AM3)

06/12/2001

15:00-15:59

201

196

154

16:00-16:59

154

162

133

17:00-17:59

103

112

112

12/12/2001

15:00-15:59

41

39

41

16:00-16:59

58

51

47

17:00-17:59

35

37

44

18/12/2001

15:00-15:59

32

28

26

16:00-16:59

20

23

22

17:00-17:59

26

23

23

24/12/2001

15:00-15:59

63

63

74

16:00-16:59

60

59

67

17:00-17:59

66

65

79

30/12/2001

15:00-15:59

113

103

97

16:00-16:59

109

104

106

17:00-17:59

104

96

102

Remark:

(1)                 The monitoring stations, Reservoir, East Gate & Ash Lagoon are located within Lamma Power Station.

 

 

                                                                        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 H.

 

 

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