APPENDIX D  AIR QUALITY MONITORING RESULTS

 

Site: Lamma Power Station Extension

 

Month: July 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.

 

(%)

01/07/2006

21

23

27

36

19.4

110

87

07/07/2006

32

41

30

33

29.1

230

78

13/07/2006

68

73

59

67

24.8

280

77

19/07/2006

37

33

41

38

6.5

170

78

25/07/2006

111

128

100

107

28.5

280

73

31/07/2006

30

27

38

44

24.5

060

80

 

1 hour TSP Measurement:-

Date

Time

TSP concentration (mg/m3)

Reservoir

(AM1)

East Gate

(AM2)

Ash Lagoon

(AM3)

01/07/2006

15:00-15:59

19

22

13

16:00-16:59

11

21

15

17:00-17:59

29

31

29

07/07/2006

15:00-15:59

12

26

14

16:00-16:59

20

41

20

17:00-17:59

20

36

21

13/07/2006

15:00-15:59

67

68

51

16:00-16:59

58

88

58

17:00-17:59

55

77

49

19/07/2006

15:00-15:59

35

34

37

16:00-16:59

35

40

29

17:00-17:59

34

38

30

25/07/2006

15:00-15:59

102

202

98

16:00-16:59

76

90

55

17:00-17:59

79

93

80

31/07/2006

15:00-15:59

25

15

12

16:00-16:59

23

30

26

17:00-17:59

14

26

27

 

 

                                                                        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