APPENDIX D  AIR QUALITY MONITORING RESULTS

 

Site: Lamma Power Station Extension

 

Month: February 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.

 

(%)

4/2/2018

68

77

72

125

33.3

360

51

10/2/2018

61

58

59

76

15.4

050

78

16/2/2018

66

54

54

74

6.2

210

78

22/2/2018

24

25

12

11

33.7

360

89

28/2/2018

41

40

38

18

10.9

030

79

 

 

 

1 hour TSP Measurement:-

Date

Time

TSP concentration (mg/m3)

Reservoir

(AM1)

East Gate

(AM2)

Ash Lagoon

(AM3)

4/2/2018

15:00 - 15:59

72

79

76

16:00 - 16:59

73

78

77

17:00 - 17:59

73

79

78

10/2/2018

15:00 - 15:59

66

62

64

16:00 - 16:59

67

64

65

17:00 - 17:59

69

64

66

16/2/2018

15:00 - 15:59

60

45

40

16:00 - 16:59

59

44

38

17:00 - 17:59

58

43

36

22/2/2018

15:00 - 15:59

24

24

26

16:00 - 16:59

22

23

25

17:00 - 17:59

21

22

24

28/2/2018

15:00 - 15:59

42

41

38

16:00 - 16:59

44

42

39

17:00 - 17:59

45

42

39

 

 

                                                                               

                                                                 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