APPENDIX D  AIR QUALITY MONITORING RESULTS

 

Site: Lamma Power Station Extension

 

Month: July 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.

 

(%)

02/07/2016

69

46

23

22

21.9

200

82

08/07/2016

86

87

69

67

23.5

280

75

14/07/2016

38

36

33

35

14.3

230

86

20/07/2016

46

28

22

39

22.7

220

82

26/07/2016

19

18

15

19

17.5

060

84

 

1 hour TSP Measurement:-

Date

Time

TSP concentration (mg/m3)

Reservoir

(AM1)

East Gate

(AM2)

Ash Lagoon

(AM3)

02/07/2016

15:00-15:59

22

0

7

16:00-16:59

0

21

19

17:00-17:59

47

84

37

08/07/2016

15:00-15:59

98

107

86

16:00-16:59

82

106

92

17:00-17:59

95

115

107

14/07/2016

15:00-15:59

52

55

33

16:00-16:59

47

77

39

17:00-17:59

37

51

46

20/07/2016

15:00-15:59

26

16

22

16:00-16:59

34

36

21

17:00-17:59

31

42

21

26/07/2016

15:00-15:59

52

40

23

16:00-16:59

14

7

9

17:00-17:59

12

16

15

 

                                                                        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