APPENDIX D  AIR QUALITY MONITORING RESULTS

 

Site: Lamma Power Station Extension

 

Month: August 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.

 

(%)

06/08/2006

27

28

44

22

16.7

100

91

12/08/2006

25

25

33

44

20.7

100

84

18/08/2006

32

41

39

35

21.8

260

78

24/08/2006

22

26

24

25

21.2

110

92

30/08/2006

22

26

26

24

17.2

240

77

 

1 hour TSP Measurement:-

Date

Time

TSP concentration (mg/m3)

Reservoir

(AM1)

East Gate

(AM2)

Ash Lagoon

(AM3)

06/08/2006

15:00-15:59

18

21

23

16:00-16:59

13

19

17

17:00-17:59

20

26

20

12/08/2006

15:00-15:59

2

11

13

16:00-16:59

9

14

12

17:00-17:59

13

19

17

18/08/2006

15:00-15:59

41

52

43

16:00-16:59

53

82

61

17:00-17:59

29

54

35

24/08/2006

15:00-15:59

26

31

32

16:00-16:59

9

23

5

17:00-17:59

22

28

33

30/08/2006

15:00-15:59

15

28

8

16:00-16:59

17

21

16

17:00-17:59

23

23

15

 

 

                                                                        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