APPENDIX D  AIR QUALITY MONITORING RESULTS

 

Site: Lamma Power Station Extension

 

Month: May 2024

 

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.

(¢X)

Mean R.H.

 

(%)

2/5/2024

35

13

19

22

33.8

70

88

8/5/2024

31

13

19

13

15.3

50

76

14/5/2024

14

13

27

32

26.4

80

64

20/5/2024

7

14

11

12

42.2

70

92

26/5/2024

7

14

12

21

8.2

40

87

 

 

1 hour TSP Measurement:-

Date

Time

TSP concentration (mg/m3)

Reservoir

(AM1)

East Gate

(AM2)

Ash Lagoon

(AM3)

2/5/2024

15:00 - 15:59

30

16

24

16:00 - 16:59

31

12

23

17:00 - 17:59

31

12

24

8/5/2024

15:00 - 15:59

23

16

18

16:00 - 16:59

38

18

23

17:00 - 17:59

40

18

26

14/5/2024

15:00 - 15:59

10

12

23

16:00 - 16:59

14

14

25

17:00 - 17:59

11

13

26

20/5/2024

15:00 - 15:59

10

13

11

16:00 - 16:59

8

14

10

17:00 - 17:59

7

15

13

26/5/2024

15:00 - 15:59

2

18

11

16:00 - 16:59

9

19

13

17:00 - 17:59

11

18

12

                                                         

                                                                         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