APPENDIX D  AIR QUALITY MONITORING RESULTS

 

Site: Lamma Power Station Extension

 

Month: January 2022

 

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.

 

(%)

1/1/2022

45

47

51

56

24.4

70

76

7/1/2022

51

52

45

36

31.5

70

79

13/1/2022

53

68

45

50

21.8

10

64

19/1/2022

30

39

20

21

16.8

10

70

25/1/2022

24

18

25

13

26.9

60

82

31/1/2022

27

22

21

24

35.0

40

70

 

1 hour TSP Measurement:-

Date

Time

TSP concentration (mg/m3)

Reservoir

(AM1)

East Gate

(AM2)

Ash Lagoon

(AM3)

1/1/2022

15:00 - 15:59

38

41

45

16:00 - 16:59

39

40

42

17:00 - 17:59

36

38

50

7/1/2022

15:00 - 15:59

50

50

44

16:00 - 16:59

53

50

63

17:00 - 17:59

52

49

63

13/1/2022

15:00 - 15:59

50

84

53

16:00 - 16:59

97

81

60

17:00 - 17:59

52

64

43

19/1/2022

15:00 - 15:59

27

33

14

16:00 - 16:59

36

35

13

17:00 - 17:59

18

23

9

25/1/2022

15:00 - 15:59

44

25

30

16:00 - 16:59

35

27

28

17:00 - 17:59

35

27

25

31/1/2022

15:00 - 15:59

23

30

21

16:00 - 16:59

22

23

20

17:00 - 17:59

22

19

20

                                                         

                                                                         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