APPENDIX D  AIR QUALITY MONITORING RESULTS

 

Site: Lamma Power Station Extension

 

Month: November 2005

 

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.

 

(%)

03/11/2005

49

56

46

72

27.1

080

76

09/11/2005

61

62

57

69

11.8

080

86

15/11/2005

45

49

41

53

35.5

020

81

21/11/2005

99

93

78

78

32.0

010

63

27/11/2005

114

106

111

132

25.4

060

78

 

1 hour TSP Measurement:-

Date

Time

TSP concentration (mg/m3)

Reservoir

(AM1)

East Gate

(AM2)

Ash Lagoon

(AM3)

03/11/2005

15:00-15:59

47

48

43

16:00-16:59

55

60

59

17:00-17:59

60

59

66

09/11/2005

15:00-15:59

58

58

45

16:00-16:59

66

62

68

17:00-17:59

63

62

60

15/11/2005

15:00-15:59

42

48

32

16:00-16:59

32

58

32

17:00-17:59

39

62

37

21/11/2005

15:00-15:59

77

79

76

16:00-16:59

75

92

78

17:00-17:59

73

90

117

27/11/2005

15:00-15:59

112

107

106

16:00-16:59

104

102

97

17:00-17:59

126

116

123

 

 

                                                                        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