APPENDIX D  AIR QUALITY MONITORING RESULTS

 

Site: Lamma Power Station Extension

 

Month: March 2018

 

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.

 

(%)

6/3/2018

22

26

25

53

32.0

060

83

12/3/2018

40

36

41

44

17.4

030

71

18/3/2018

35

37

35

44

24.9

050

83

24/3/2018

68

66

57

96

28.0

060

77

30/3/2018

44

38

44

69

17.1

080

76

 

 

 

1 hour TSP Measurement:-

Date

Time

TSP concentration (mg/m3)

Reservoir

(AM1)

East Gate

(AM2)

Ash Lagoon

(AM3)

6/3/2018

15:00 - 15:59

22

17

28

16:00 - 16:59

23

20

29

17:00 - 17:59

24

21

30

12/3/2018

15:00 - 15:59

40

31

41

16:00 - 16:59

40

30

41

17:00 - 17:59

40

30

41

18/3/2018

15:00 - 15:59

37

32

35

16:00 - 16:59

37

32

35

17:00 - 17:59

38

32

35

24/3/2018

15:00 - 15:59

71

53

56

16:00 - 16:59

71

53

56

17:00 - 17:59

72

54

55

30/3/2018

15:00 - 15:59

42

38

44

16:00 - 16:59

42

37

44

17:00 - 17:59

41

38

43

 

 

                                                                               

                                                                 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