APPENDIX D  AIR QUALITY MONITORING RESULTS

 

Site: Lamma Power Station Extension

 

Month: May 2019

 

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.

 

(%)

6/5/2019

6

10

9

26

42.0

060

90

12/5/2019

32

32

30

19

22.1

050

80

18/5/2019

40

43

32

50

26.9

230

80

24/5/2019

45

41

33

36

37.6

080

92

30/5/2019

34

37

30

46

37.3

070

89

 

1 hour TSP Measurement:-

Date

Time

TSP concentration (mg/m3)

Reservoir

(AM1)

East Gate

(AM2)

Ash Lagoon

(AM3)

6/5/2019

15:00 - 15:59

8

11

12

16:00 - 16:59

9

12

10

17:00 - 17:59

7

12

10

12/5/2019

15:00 - 15:59

34

30

25

16:00 - 16:59

32

31

26

17:00 - 17:59

30

34

30

18/5/2019

15:00 - 15:59

61

37

26

16:00 - 16:59

52

35

26

17:00 - 17:59

61

37

30

24/5/2019

15:00 - 15:59

65

47

41

16:00 - 16:59

67

49

44

17:00 - 17:59

56

49

44

30/5/2019

15:00 - 15:59

37

43

35

16:00 - 16:59

49

44

34

17:00 - 17:59

45

38

29

                                                          

 

 

 

 

 

 

 

 

 

                                                                         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