APPENDIX E  AIR QUALITY MONITORING RESULTS FOR SEPTEMBER 2001

 

Site: Lamma Power Station Extension

 

Month: September 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.

 

(%)

01/09/2001

27

34

56

43

17.8

200

92

07/09/2001

33

34

40

50

16.5

090

90

13/09/2001

55

42

47

64

10.2

120

79

19/09/2001

102

93

115

118

12.7

280

68

25/09/2001

92

80

90

82

32.8

010

55

 

 

1 hour TSP Measurement:-

Date

Time

TSP concentration (mg/m3)

Reservoir

(AM1)

East Gate

(AM2)

Ash Lagoon

(AM3)

01/09/2001

15:00-15:59

16

16

21

16:00-16:59

13

28

20

17:00-17:59

8

3

11

07/09/2001

15:00-15:59

63 (8/9)

0

17

16:00-16:59

73 (8/9)

40

39

17:00-17:59

70 (8/9)

3

3

13/09/2001

15:00-15:59

55

61

54

16:00-16:59

51

53

59

17:00-17:59

35

26

29

19/09/2001

15:00-15:59

85

87

75

16:00-16:59

100

95

99

17:00-17:59

107

43

125

25/09/2001

15:00-15:59

99

93

101

16:00-16:59

112

108

102

17:00-17:59

119

107

124

 

Remark:

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

(2)                 TEOM at AM1 (Reservoir) was tripped on 7/9/2001.  A make-up 1hr TSP sampling for AM1 was carried out on 8/9/2001.

                                                                        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