Lamma Power Station Extension - Air Quality Monitoring Data for unit L13 (Construction)

24-hr TSP (µg/m3)

1-hr TSP (µg/m3)

Date

Reservoir

 (AM1)

East Gate

 (AM2)

Ash Lagoon (AM3)

Tai Yuen Village (AM4)

Date

Time

Reservoir (AM1)

East Gate (AM2)

Ash Lagoon (AM3)

4/3/2025

17

31

14

11

4/3/2025

15:00 - 15:59

19

61

14

10/3/2025

37

64

34

31

16:00 - 16:59

37

108

14

16/3/2025

26

25

19

10

17:00 - 17:59

18

92

16

22/3/2025

44

53

37

11

10/3/2025

15:00 - 15:59

35

148

36

28/3/2025

23

46

14

8

16:00 - 16:59

39

76

28

 

 

 

 

 

17:00 - 17:59

33

50

28

 

 

 

 

 

16/3/2025

15:00 - 15:59

21

22

21

 

 

 

 

 

16:00 - 16:59

23

23

20

 

 

 

 

 

17:00 - 17:59

23

31

21

 

 

 

 

 

 

22/3/2025

15:00 - 15:59

28

44

38

 

 

 

 

 

 

16:00 - 16:59

62

49

38

 

 

 

 

 

 

17:00 - 17:59

38

40

47

 

 

 

 

 

 

28/3/2025

15:00 - 15:59

21

158

18

 

 

 

 

 

 

16:00 - 16:59

26

93

21

 

 

 

 

 

 

17:00 - 17:59

26

28

22

 

 

Lamma Power Station Extension - Air Quality Monitoring Data for unit L9 (Operation)

Date

Daily Maximum Stack NOx concentration (mg/Nm3)#

1/3/2025

75

2/3/2025

*

3/3/2025

71

4/3/2025

71

5/3/2025

69

6/3/2025

78

7/3/2025

78

8/3/2025

76

9/3/2025

78

10/3/2025

76

11/3/2025

75

12/3/2025

74

13/3/2025

78

14/3/2025

73

15/3/2025

74

16/3/2025

*

17/3/2025

82^

18/3/2025

81

19/3/2025

81

20/3/2025

81

21/3/2025

80

22/3/2025

79

23/3/2025

*

24/3/2025

77

25/3/2025

73

26/3/2025

77

 

 

 

 

 

 

 

27/3/2025

75

 

 

 

 

 

 

 

28/3/2025

73

 

 

 

 

 

 

 

29/3/2025

76

 

 

 

 

 

 

 

30/3/2025

*

 

 

 

 

 

 

 

31/3/2025

78

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Note:

 

 

 

 

 

# - Hourly average value.  Expressed as at 0¢XC, 101.325kPa, dry and corrected to 15% O2 condition.

^ - The NOx concentration exceeded action level due to low relative humidity.

 

 

 

 

* - Unit L9 was not on load.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Lamma Power Station Extension - Air Quality Monitoring Data for unit L10 (Operation)

Date

Daily Maximum Stack NOx concentration (mg/Nm3)#

1/3/2025

*

2/3/2025

*

3/3/2025

*

4/3/2025

*

5/3/2025

*

6/3/2025

*

7/3/2025

*

8/3/2025

*

9/3/2025

*

10/3/2025

*

11/3/2025

*

12/3/2025

*

13/3/2025

*

14/3/2025

*

15/3/2025

*

16/3/2025

*

17/3/2025

*

18/3/2025

*

19/3/2025

*

20/3/2025

*

21/3/2025

*

22/3/2025

*

23/3/2025

*

24/3/2025

*

25/3/2025

*

26/3/2025

*

 

 

 

 

 

 

 

27/3/2025

*

 

 

 

 

 

 

 

28/3/2025

*

 

 

 

 

 

 

 

29/3/2025

*

 

 

 

 

 

 

 

30/3/2025

*

 

 

 

 

 

 

 

31/3/2025

*

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The daily maximum stack NOx concentration complies with the Action/Limit Level for all unit loading ranges.

 

Note:

# - Hourly average value.  Expressed as at 0¢XC, 101.325kPa, dry and corrected to 15% O2 condition.

* - Unit L10 was not on load.

^ - Unit L10 was operating with loading less than 266 MW.

 

 

Lamma Power Station Extension - Air Quality Monitoring Data for unit L11 (Operation)

Date

Daily Maximum Stack NOx concentration (mg/Nm3)#

1/3/2025

4

2/3/2025

4

3/3/2025

3

4/3/2025

4

5/3/2025

4

 

 

 

 

 

 

 

6/3/2025

5^

 

 

 

 

 

 

 

7/3/2025

6^

8/3/2025

8^

9/3/2025

6^

10/3/2025

6^

11/3/2025

6^

12/3/2025

4

 

 

 

 

 

 

 

13/3/2025

4

 

 

 

 

 

 

 

14/3/2025

3

 

 

 

 

 

 

 

15/3/2025

4

 

 

 

 

 

 

 

16/3/2025

5^

 

 

 

 

 

 

 

17/3/2025

8^

 

 

 

 

 

 

 

18/3/2025

6^

 

 

 

 

 

 

 

19/3/2025

8^

 

 

 

 

 

 

 

20/3/2025

7^

 

 

 

 

 

 

 

21/3/2025

7^

 

 

 

 

 

 

 

22/3/2025

6^

 

 

 

 

 

 

 

23/3/2025

5^

 

 

 

 

 

 

 

24/3/2025

4

 

 

 

 

 

 

 

25/3/2025

4

 

 

 

 

 

 

 

26/3/2025

3

 

 

 

 

 

 

 

27/3/2025

3

 

 

 

 

 

 

 

28/3/2025

3

 

 

 

 

 

 

 

29/3/2025

6^

 

 

 

 

 

 

 

30/3/2025

7^

 

 

 

 

 

 

 

31/3/2025

8^

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The daily maximum stack NOx concentration complies with the Action/Limit Level for all unit loading ranges.

 

Note:

# - Hourly average value.  Expressed as at 0¢XC, 101.325kPa, dry and corrected to 15% O2 condition.

* - Unit L11 was not on load.

^ - Unit L11 was operating with loading less than 266 MW.

 

Lamma Power Station Extension - Air Quality Monitoring Data for unit L12 (Operation)

 

Date

Daily Maximum Stack NOx concentration (mg/Nm3)#

1/3/2025

3

2/3/2025

3

3/3/2025

3

4/3/2025

3

 

 

 

 

 

 

 

5/3/2025

3

6/3/2025

3

 

 

 

 

 

 

 

7/3/2025

3

8/3/2025

*

9/3/2025

*

10/3/2025

3

11/3/2025

3

12/3/2025

3

 

 

 

 

 

 

 

13/3/2025

3

 

 

 

 

 

 

 

14/3/2025

3

 

 

 

 

 

 

 

15/3/2025

3

 

 

 

 

 

 

 

16/3/2025

4

 

 

 

 

 

 

 

17/3/2025

4

 

 

 

 

 

 

 

18/3/2025

4

 

 

 

 

 

 

 

19/3/2025

4

 

 

 

 

 

 

 

20/3/2025

4

 

 

 

 

 

 

 

21/3/2025

4

 

 

 

 

 

 

 

22/3/2025

3

 

 

 

 

 

 

 

23/3/2025

4

 

 

 

 

 

 

 

24/3/2025

4

 

 

 

 

 

 

 

25/3/2025

3

 

 

 

 

 

 

 

26/3/2025

3

 

 

 

 

 

 

 

27/3/2025

3

 

 

 

 

 

 

 

28/3/2025

3

 

 

 

 

 

 

 

29/3/2025

4

 

 

 

 

 

 

 

30/3/2025

4

 

 

 

 

 

 

 

31/3/2025

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The daily maximum stack NOx concentration complies with the Action/Limit Level for all unit loading ranges.

 

Note:

# - Hourly average value.  Expressed as at 0¢XC, 101.325kPa, dry and corrected to 15% O2 condition.

* - Unit L12 was not on load.

^ - Unit L12 was operating with loading less than 266 MW.