APPENDIX D  AIR QUALITY MONITORING RESULTS

 

Site: Lamma Power Station Extension

 

Month: May 2017

 

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.

 

(%)

04/05/2017

27

31

22

53

12.8

150

90

10/05/2017

89

97

61

94

7.0

090

81

16/05/2017

23

89

12

33

21.9

010

85

22/05/2017

29

29

24

24

34.0

090

93

28/05/2017

45

57

53

47

27.7

090

68

 

 

 

1 hour TSP Measurement:-

Date

Time

TSP concentration (mg/m3)

Reservoir

(AM1)

East Gate

(AM2)

Ash Lagoon

(AM3)

04/05/2017

15:00 - 15:59

5

24

19

16:00 - 16:59

19

24

14

17:00 - 17:59

3

23

17

10/05/2017

15:00 - 15:59

94

100

45

16:00 - 16:59

70

78

28

17:00 - 17:59

82

63

16

16/05/2017

15:00 - 15:59

11

22

27

16:00 - 16:59

17

29

27

17:00 - 17:59

28

31

31

22/05/2017

15:00 - 15:59

29

30

24

16:00 - 16:59

32

33

27

17:00 - 17:59

33

34

28

28/05/2017

15:00 - 15:59

17

63

65

16:00 - 16:59

25

61

64

17:00 - 17:59

24

66

75

 

 

                                                                        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