APPENDIX D  AIR QUALITY MONITORING RESULTS

 

Site: Lamma Power Station Extension

 

Month: December 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.

 

(%)

05/12/2016

89

102

84

72

12.0

60

79

11/12/2016

61

63

48

49

42.8

80

76

17/12/2016

69

81

54

35

31.5

60

68

23/12/2016

47

25

37

53

25.7

30

73

29/12/2016

74

74

56

65

27.8

10

54

 

1 hour TSP Measurement:-

Date

Time

TSP concentration (mg/m3)

Reservoir

(AM1)

East Gate

(AM2)

Ash Lagoon

(AM3)

05/12/2016

15:00-15:59

72

77

63

16:00-16:59

69

68

74

17:00-17:59

73

59

73

11/12/2016

15:00-15:59

48

40

44

16:00-16:59

45

39

45

17:00-17:59

35

46

45

17/12/2016

15:00-15:59

62

59

50

16:00-16:59

64

63

51

17:00-17:59

65

61

50

23/12/2016

15:00-15:59

34

43

39

16:00-16:59

50

50

46

17:00-17:59

51

54

46

29/12/2016

15:00-15:59

65

67

56

16:00-16:59

56

58

49

17:00-17:59

51

65

59

 

 

                                                                        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