APPENDIX D  AIR QUALITY MONITORING RESULTS

 

Site: Lamma Power Station Extension

 

Month: April 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.

 

(%)

5/4/2018

32

31

35

46

7.0

110

78

11/4/2018

47

46

37

44

9.9

030

83

17/4/2018

35

45

37

33

19.1

010

82

23/4/2018

25

23

16

35

7.6

130

79

29/4/2018

46

46

45

38

14.4

070

82

 

 

 

1 hour TSP Measurement:-

Date

Time

TSP concentration (mg/m3)

Reservoir

(AM1)

East Gate

(AM2)

Ash Lagoon

(AM3)

5/4/2018

15:00 - 15:59

22

15

31

16:00 - 16:59

26

30

37

17:00 - 17:59

29

31

36

11/4/2018

15:00 - 15:59

66

46

61

16:00 - 16:59

58

49

49

17:00 - 17:59

61

49

40

17/4/2018

15:00 - 15:59

32

30

28

16:00 - 16:59

31

35

32

17:00 - 17:59

35

35

35

23/4/2018

15:00 - 15:59

21

24

13

16:00 - 16:59

24

21

6

17:00 - 17:59

18

14

10

29/4/2018

15:00 - 15:59

47

40

37

16:00 - 16:59

47

41

40

17:00 - 17:59

40

43

38

 

 

 

 

 

 

 

                                                                               

                                                                 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