APPENDIX D  AIR QUALITY MONITORING RESULTS

 

Site: Lamma Power Station Extension

 

Month: August 2018

 

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.

 

(%)

3/8/2018

28

39

27

19

22.1

230

77

9/8/2018

22

24

18

17

38.5

080

74

15/8/2018

24

47

20

9.7

22.5

130

86

21/8/2018

36

35

30

17

8.1

010

86

27/8/2018

20

25

21

22

14.5

220

87

 

 

 

 

1 hour TSP Measurement:-

Date

Time

TSP concentration (mg/m3)

Reservoir

(AM1)

East Gate

(AM2)

Ash Lagoon

(AM3)

3/8/2018

15:00 - 15:59

27

46

42

16:00 - 16:59

27

26

32

17:00 - 17:59

23

25

29

9/8/2018

15:00 - 15:59

27

20

14

16:00 - 16:59

36

68

23

17:00 - 17:59

34

31

34

15/8/2018

15:00 - 15:59

26

66

18

16:00 - 16:59

34

74

24

17:00 - 17:59

26

67

20

21/8/2018

15:00 - 15:59

26

28

23

16:00 - 16:59

17

20

14

17:00 - 17:59

24

21

24

27/8/2018

15:00 - 15:59

26

39

29

16:00 - 16:59

34

37

24

17:00 - 17:59

27

34

23

 

 

 

 

 

 

                                               

                                                                 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, East Gate and Ash Lagoon

TEOM

TEOM

Tai Yuen Village

-

MINIVOL Portable Sampler