APPENDIX D  AIR QUALITY MONITORING RESULTS

 

Site: Lamma Power Station Extension

 

Month: January 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.

 

(%)

6/1/2019

39

55

39

49

20.0

020

83

12/1/2019

115

116

113

149

6.7

020

83

18/1/2019

46

48

43

24

26.4

060

75

24/1/2019

64

47

59

72

25.6

060

71

30/1/2019

35

31

33

31

25.8

050

73

 

 

1 hour TSP Measurement:-

Date

Time

TSP concentration (mg/m3)

Reservoir

(AM1)

East Gate

(AM2)

Ash Lagoon

(AM3)

6/1/2019

15:00 - 15:59

38

30

19

16:00 - 16:59

19

24

14

17:00 - 17:59

15

22

14

12/1/2019

15:00 - 15:59

142

192

151

16:00 - 16:59

165

207

161

17:00 - 17:59

156

183

164

18/1/2019

15:00 - 15:59

41

62

47

16:00 - 16:59

50

77

52

17:00 - 17:59

56

80

54

24/1/2019

15:00 - 15:59

67

54

65

16:00 - 16:59

73

54

66

17:00 - 17:59

69

41

55

30/1/2019

15:00 - 15:59

53

40

38

16:00 - 16:59

37

38

33

17:00 - 17:59

36

36

31

 

 

                                                                 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