APPENDIX D  AIR QUALITY MONITORING RESULTS

 

Site: Lamma Power Station Extension

 

Month: September 2016

 

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.

 

(%)

6/9/2016

15

17

10

13

7.3

050

90

12/9/2016

28

29

27

28

15.2

030

83

18/9/2016

42

42

40

29

12.7

010

66

24/9/2016

43

46

39

22

27.6

080

78

30/9/2016

103

108

70

71

7.5

010

78

 

1 hour TSP Measurement:-

Date

Time

TSP concentration (mg/m3)

Reservoir

(AM1)

East Gate

(AM2)

Ash Lagoon

(AM3)

06/09/2016

15:00-15:59

0

11

0

16:00-16:59

1

16

3

17:00-17:59

6

19

5

12/09/2016

15:00-15:59

16

12

16

16:00-16:59

13

7

15

17:00-17:59

15

31

26

18/09/2016

15:00-15:59

35

37

30

16:00-16:59

37

46

34

17:00-17:59

44

56

35

24/09/2016

15:00-15:59

41

47

41

16:00-16:59

39

89

44

17:00-17:59

48

72

45

30/09/2016

15:00-15:59

72

90

84

16:00-16:59

79

87

87

17:00-17:59

69

84

78

 

                                                                        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 and East Gate

TEOM

High Volume Air Sampler

Ash Lagoon

TEOM

TEOM

Tai Yuen Village

-

MINIVOL Portable Sampler