APPENDIX D  AIR QUALITY MONITORING RESULTS

 

Site: Lamma Power Station Extension

 

Month: February 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.

 

(%)

5/2/2019

49

48

47

54

23.7

050

84

11/2/2019

23

22

22

25

27.3

040

85

17/2/2019

20

12

19

13

43.4

070

86

23/2/2019

24

36

24

7

36.5

060

87

 

1 hour TSP Measurement:-

Date

Time

TSP concentration (mg/m3)

Reservoir

(AM1)

East Gate

(AM2)

Ash Lagoon

(AM3)

5/2/2019

15:00 - 15:59

61

43

57

16:00 - 16:59

58

43

56

17:00 - 17:59

57

44

58

11/2/2019

15:00 - 15:59

27

22

21

16:00 - 16:59

19

23

24

17:00 - 17:59

35

24

34

17/2/2019

15:00 - 15:59

24

9

18

16:00 - 16:59

19

8

18

17:00 - 17:59

13

9

19

23/2/2019

15:00 - 15:59

22

26

23

16:00 - 16:59

31

26

32

17:00 - 17:59

39

27

30

 

                                                                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