APPENDIX D  AIR QUALITY MONITORING RESULTS

 

Site: Lamma Power Station Extension

 

Month: July 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.

 

(%)

4/7/2018

36

36

32

32

19.5

230

75

10/7/2018

23

25

24

13

32.4

220

78

16/7/2018

23

27

24

15

23.1

090

80

22/7/2018

20

22

20

15

41.8

070

81

28/7/2018

18

15

11

15

15.0

230

76

 

 

 

 

1 hour TSP Measurement:-

Date

Time

TSP concentration (mg/m3)

Reservoir

(AM1)

East Gate

(AM2)

Ash Lagoon

(AM3)

4/7/2018

15:00 - 15:59

38

68

33

16:00 - 16:59

45

58

42

17:00 - 17:59

44

35

45

10/7/2018

15:00 - 15:59

25

18

23

16:00 - 16:59

21

27

23

17:00 - 17:59

30

28

26

16/7/2018

15:00 - 15:59

14

12

15

16:00 - 16:59

22

19

15

17:00 - 17:59

20

23

21

22/7/2018

15:00 - 15:59

13

16

23

16:00 - 16:59

5

17

10

17:00 - 17:59

14

21

10

28/7/2018

15:00 - 15:59

28

21

14

16:00 - 16:59

37

27

7

17:00 - 17:59

21

16

5

 

 

 

 

 

 

                                               

                                                                 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