APPENDIX D  AIR QUALITY MONITORING RESULTS

 

Site: Lamma Power Station Extension

 

Month: September 2019

 

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.

 

(%)

3/9/2019

19

23

18

18

39.3

050

80

9/9/2019

24

29

27

21

7.8

140

78

15/9/2019

28

32

28

10

9.8

080

76

21/9/2019

77

87

74

94

31.1

360

42

27/9/2019

60

65

55

56

16.3

080

72

 

 

1 hour TSP Measurement:-

Date

Time

TSP concentration (mg/m3)

Reservoir

(AM1)

East Gate

(AM2)

Ash Lagoon

(AM3)

3/9/2019

15:00 - 15:59

16

25

20

16:00 - 16:59

30

43

20

17:00 - 17:59

26

21

19

9/9/2019

15:00 - 15:59

18

24

17

16:00 - 16:59

21

13

18

17:00 - 17:59

23

30

20

15/9/2019

15:00 - 15:59

15

25

19

16:00 - 16:59

35

25

29

17:00 - 17:59

36

26

30

21/9/2019

15:00 - 15:59

119

156

96

16:00 - 16:59

133

179

104

17:00 - 17:59

120

135

98

27/9/2019

15:00 - 15:59

78

70

64

16:00 - 16:59

67

52

55

17:00 - 17:59

54

35

53

                                                          

 

 

 

 

 

 

 

 

 

                                                                         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