APPENDIX D  AIR QUALITY MONITORING RESULTS

 

Site: Lamma Power Station Extension

 

Month: November 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.

 

(%)

2/11/2019

47

46

39

64

**

**

74

8/11/2019

52

66

57

61

**

**

51

14/11/2019

70

78

68

63

**

**

64

20/11/2019

61

66

53

51

**

**

66

26/11/2019

55

60

47

49

**

**

76

 

**  Wind data not available from Hong Kong Observatory

 

1 hour TSP Measurement:-

Date

Time

TSP concentration (mg/m3)

Reservoir

(AM1)

East Gate

(AM2)

Ash Lagoon

(AM3)

2/11/2019

15:00 - 15:59

54

47

42

16:00 - 16:59

47

42

44

17:00 - 17:59

54

50

45

8/11/2019

15:00 - 15:59

55

68

54

16:00 - 16:59

52

73

56

17:00 - 17:59

50

57

54

14/11/2019

15:00 - 15:59

79

82

72

16:00 - 16:59

78

82

69

17:00 - 17:59

77

78

71

20/11/2019

15:00 - 15:59

70

62

57

16:00 - 16:59

56

61

46

17:00 - 17:59

53

64

42

26/11/2019

15:00 - 15:59

56

62

48

16:00 - 16:59

52

59

44

17:00 - 17:59

61

56

42

                                                          

 

 

 

 

 

 

 

 

 

                                                                         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