APPENDIX E  AIR QUALITY MONITORING RESULTS FOR APRIL 2001

 

Site: Lamma Power Station Extension

 

Month: April 2001

 

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.

(%)

04/04/2001

23

23

40

13

34.9

080

93

10/04/2001

48

43

36

44

33.1

070

89

16/04/2001

97

83

94

101

15.3

060

82

22/04/2001

24

26

22

26

41.8

070

90

28/04/2001

71

58

78

97

13.8

020

90

 

 

1 hour TSP Measurement:-

Date

Time

TSP concentration (mg/m3)

Reservoir

(AM1)

East Gate

(AM2)

Ash Lagoon

(AM3)

04/04/2001

15:00-15:59

15

22

21

16:00-16:59

7

19

14

17:00-17:59

0

0

0

10/04/2001

15:00-15:59

31

37

35

16:00-16:59

39

43

41

17:00-17:59

34

37

37

16/04/2001

15:00-15:59

71

84

67

16:00-16:59

71

73

81

17:00-17:59

76

64

85

22/04/2001

15:00-15:59

5

14

9

16:00-16:59

10

18

10

17:00-17:59

20

24

23

28/04/2001

15:00-15:59

76

70

63

16:00-16:59

93

75

67

17:00-17:59

88

83

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 H.

 

 

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