APPENDIX D  AIR QUALITY MONITORING RESULTS

 

Site: Lamma Power Station Extension

 

Month: June 2017

 

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.

 

(%)

03/06/2017

45

84

28

21

30.5

240

83

09/06/2017

31

40

17

60

20.6

120

81

15/06/2017

40

44

34

29

31.3

230

81

21/06/2017

30

33

31

19

27.6

210

90

27/06/2017

30

40

26

31

24.8

230

79

 

 

 

1 hour TSP Measurement:-

Date

Time

TSP concentration (mg/m3)

Reservoir

(AM1)

East Gate

(AM2)

Ash Lagoon

(AM3)

03/06/2017

15:00 - 15:59

42

68

34

16:00 - 16:59

45

60

45

17:00 - 17:59

38

48

32

09/06/2017

15:00 - 15:59

17

21

22

16:00 - 16:59

16

23

19

17:00 - 17:59

11

17

16

15/06/2017

15:00 - 15:59

39

59

23

16:00 - 16:59

40

56

24

17:00 - 17:59

41

45

26

21/06/2017

15:00 - 15:59

18

33

40

16:00 - 16:59

38

31

36

17:00 - 17:59

21

39

45

27/06/2017

15:00 - 15:59

18

53

46

16:00 - 16:59

13

46

64

17:00 - 17:59

16

42

50

 

 

                                                                        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

High Volume Air Sampler

Ash Lagoon

TEOM

TEOM

Tai Yuen Village

-

MINIVOL Portable Sampler