APPENDIX D  AIR QUALITY MONITORING RESULTS

 

Site: Lamma Power Station Extension

 

Month: February 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.

 

(%)

01/02/2006

64

56

58

63

19.3

060

86

07/02/2006

77

71

78

97

20.8

050

76

13/02/2006

90

88

94

119

32.9

080

71

19/02/2006

69

61

85

58

15.1

020

84

25/02/2006

115

92

123

128

20.5

070

84

 

1 hour TSP Measurement:-

Date

Time

TSP concentration (mg/m3)

Reservoir

(AM1)

East Gate

(AM2)

Ash Lagoon

(AM3)

01/02/2006

15:00-15:59

45

46

41

16:00-16:59

54

53

45

17:00-17:59

81

55

51

07/02/2006

15:00-15:59

44

49

43

16:00-16:59

61

67

54

17:00-17:59

74

76

78

13/02/2006

15:00-15:59

96

102

90

16:00-16:59

85

90

78

17:00-17:59

91

98

83

19/02/2006

15:00-15:59

43

36

28

16:00-16:59

51

57

36

17:00-17:59

73

80

60

25/02/2006

15:00-15:59

57

50

39

16:00-16:59

64

57

49

17:00-17:59

76

79

60

 

 

 

                                                                        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