APPENDIX D  AIR QUALITY MONITORING RESULTS

 

Site: Lamma Power Station Extension

 

Month: May 2016

 

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.

 

(%)

03/05/2016

25

35

22

29

***

***

86

09/05/2016

25

21

17

35

***

***

81

15/05/2016

29

31

28

57

***

***

85

21/05/2016

41

43

29

31

***

***

88

27/05/2016

22

36

20

13

***

***

89

Remarks:              ***  wind data not available from Hong Kong Observatory

 

1 hour TSP Measurement:-

Date

Time

TSP concentration (mg/m3)

Reservoir

(AM1)

East Gate

(AM2)

Ash Lagoon

(AM3)

03/05/2016

15:00-15:59

33

48

33

16:00-16:59

39

34

24

17:00-17:59

27

0

0

09/05/2016

15:00-15:59

20

32

10

16:00-16:59

23

37

21

17:00-17:59

27

32

26

15/05/2016

15:00-15:59

22

30

21

16:00-16:59

27

33

26

17:00-17:59

25

25

23

21/05/2016

15:00-15:59

18

37

18

16:00-16:59

28

42

11

17:00-17:59

16

39

25

27/05/2016

15:00-15:59

16

37

20

16:00-16:59

28

17

18

17:00-17:59

21

22

25

 

 

                                                                        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