APPENDIX D  AIR QUALITY MONITORING RESULTS

 

Site: Lamma Power Station Extension

 

Month: June 2002

 

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.

 

(%)

04/06/2002

31

36

28

28

33.6

070

79

10/06/2002

42

34

23

22

17.5

220

84

16/06/2002

28

34

12

15

29.5

220

79

22/06/2002

17

17

13

11

24.4

120

85

28/06/2002

39

67

26

8

23.0

230

74

 

1 hour TSP Measurement:-

Date

Time

TSP concentration (mg/m3)

Reservoir

(AM1)

East Gate

(AM2)

Ash Lagoon

(AM3)

04/06/2002

15:00-15:59

39

36

44

16:00-16:59

43

38

46

17:00-17:59

45

36

44

10/06/2002

15:00-15:59

14

5

0

16:00-16:59

0

21

9

17:00-17:59

48

49

53

16/06/2002

15:00-15:59

20 (18/6)

50

15

16:00-16:59

18 (18/6)

48

18

17:00-17:59

14 (18/6)

27

16

22/06/2002

15:00-15:59

16

0

10

16:00-16:59

5

12

11

17:00-17:59

7

5

8

28/06/2002

15:00-15:59

30

73

48

16:00-16:59

44

64

28

17:00-17:59

44

59

25

Remark:

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

 

 

                                                                        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 G.

 

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