APPENDIX D  AIR QUALITY MONITORING RESULTS

 

Site: Lamma Power Station Extension

 

Month: February 2004

 

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.

 

(%)

06/02/2004

55

65

51

49

28.2

020

74

12/02/2004

79

66

75

72

9.2

030

74

18/02/2004

86

89

84

93

14.3

050

85

24/02/2004

68

71

31

64

27.9

070

79

 

1 hour TSP Measurement:-

Date

Time

TSP concentration (mg/m3)

Reservoir

(AM1)

East Gate

(AM2)

Ash Lagoon

(AM3)

06/02/2004

15:00-15:59

49

51

53

16:00-16:59

48

48

44

17:00-17:59

53

58

58

12/02/2004

15:00-15:59

72

69

63

16:00-16:59

87

83

84

17:00-17:59

72

54

74

18/02/2004

15:00-15:59

63

60

62

16:00-16:59

68

81

70

17:00-17:59

62

56

65

24/02/2004

15:00-15:59

67

74

65

16:00-16:59

60

63

57

17:00-17:59

66

64

67

 

Remark:

(1)            The monitoring stations, Reservoir, East Gate & Ash Lagoon are located within Lamma Power Station.

 

 

 

 

                                                                        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 1400a

High Volume Air Sampler

Ash Lagoon

Partisol Model 2000 Sampler

Tai Yuen Village

-

MINIVOL Portable Sampler