APPENDIX D  AIR QUALITY MONITORING RESULTS

 

Site: Lamma Power Station Extension

 

Month: March 2022

 

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.

 

(%)

2/3/2022

/2022

42

34

32

17

12.0

360

83

8/3/2022

23

19

20

17

26.7

80

53

14/3/2022

38

37

29

28

8.5

30

78

20/3/2022

27

21

22

24

30.5

70

88

26/3/2022

46

28

23

15

26.3

230

86

 

1 hour TSP Measurement:-

Date

Time

TSP concentration (mg/m3)

Reservoir

(AM1)

East Gate

(AM2)

Ash Lagoon

(AM3)

2/3/2022

15:00 - 15:59

23

28

30

16:00 - 16:59

31

27

28

17:00 - 17:59

41

35

37

8/3/2022

15:00 - 15:59

25

19

19

16:00 - 16:59

32

24

22

17:00 - 17:59

29

24

23

14/3/2022

15:00 - 15:59

42

43

31

16:00 - 16:59

28

45

26

17:00 - 17:59

36

45

27

20/3/2022

15:00 - 15:59

35

30

28

16:00 - 16:59

30

29

28

17:00 - 17:59

29

25

26

26/3/2022

15:00 - 15:59

59

35

27

16:00 - 16:59

54

33

28

17:00 - 17:59

37

31

28

                                                         

                                                                         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