APPENDIX D  AIR QUALITY MONITORING RESULTS

 

Site: Lamma Power Station Extension

 

Month: October 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.

 

(%)

2/10/2018

29

28

21

14

11.3

220

77

8/10/2018

44

44

42

21

14.5

100

81

14/10/2018

71

64

71

46

24.8

080

67

20/10/2018

51

47

49

45

23.5

080

75

26/10/2018

41

35

36

45

28.3

080

79

 

 

 

 

1 hour TSP Measurement:-

Date

Time

TSP concentration (mg/m3)

Reservoir

(AM1)

East Gate

(AM2)

Ash Lagoon

(AM3)

2/10/2018

15:00 - 15:59

80

68

74

16:00 - 16:59

82

71

73

17:00 - 17:59

78

71

73

8/10/2018

15:00 - 15:59

65

49

66

16:00 - 16:59

59

47

57

17:00 - 17:59

45

44

52

14/10/2018

15:00 - 15:59

43

34

37

16:00 - 16:59

41

33

35

17:00 - 17:59

42

32

35

20/10/2018

15:00 - 15:59

49

42

39

16:00 - 16:59

46

43

41

17:00 - 17:59

45

40

41

26/10/2018

15:00 - 15:59

86

53

55

16:00 - 16:59

108

49

72

17:00 - 17:59

87

56

90

 

 

 

 

 

 

                                               

                                                                 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