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)

4/5/2026

23

23

21

15

4/5/2026

15:00 - 15:59

27

32

34

10/5/2026

36

33

30

13

16:00 - 16:59

36

37

43

16/5/2026

22

24

17

26

17:00 - 17:59

44

32

33

22/5/2026

21

26

20

11

10/5/2026

15:00 - 15:59

34

32

29

28/5/2026

24

44

19

13

16:00 - 16:59

36

32

31

 

 

 

 

 

17:00 - 17:59

39

36

33

 

16/5/2026

15:00 - 15:59

23

17

11

16:00 - 16:59

8

10

3

17:00 - 17:59

7

15

8

 

22/5/2026

15:00 - 15:59

26

27

25

 

16:00 - 16:59

22

25

27

 

17:00 - 17:59

21

25

30

 

28/5/2026

15:00 - 15:59

23

65

28

 

16:00 - 16:59

24

49

25

 

 

 

 

 

 

17:00 - 17:59

24

41

23

 

 

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

Date

Daily Maximum Stack NOx concentration (mg/Nm3)#

1/5/2026

63

2/5/2026

61

3/5/2026

59

4/5/2026

66

5/5/2026

63

6/5/2026

61

7/5/2026

66

8/5/2026

64

9/5/2026

65

10/5/2026

64

11/5/2026

62

12/5/2026

59

13/5/2026

59

14/5/2026

60

15/5/2026

64

16/5/2026

62

17/5/2026

62

18/5/2026

60

19/5/2026

58

20/5/2026

58

21/5/2026

56

22/5/2026

55

23/5/2026

58

24/5/2026

58

25/5/2026

59

26/5/2026

57

 

 

 

 

 

 

 

27/5/2026

58

 

 

 

 

 

 

 

28/5/2026

59

 

 

 

 

 

 

 

29/5/2026

58

 

 

 

 

 

 

 

30/5/2026

64

 

 

 

 

 

 

 

31/5/2026

61

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Note:

 

 

 

 

 

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

 

 

 

 

* - Unit L9 was not on load.

 

 

 

 

 

 

 

 

 

^ - The NOx concentration was 80.8 mg/Nm3, which is below the Action Level of 81 mg/Nm3.

 

 

 

 

 

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

Date

Daily Maximum Stack NOx concentration (mg/Nm3)#

1/5/2026

3

2/5/2026

3

3/5/2026

3

4/5/2026

3

5/5/2026

3

6/5/2026

3

7/5/2026

3

8/5/2026

3

9/5/2026

3

10/5/2026

3

11/5/2026

3

12/5/2026

3

13/5/2026

3

14/5/2026

3

15/5/2026

3

16/5/2026

3

17/5/2026

3

18/5/2026

3

19/5/2026

3

20/5/2026

3

21/5/2026

3

22/5/2026

3

23/5/2026

3

24/5/2026

3

25/5/2026

3

26/5/2026

3

 

 

 

 

 

 

 

27/5/2026

3

 

 

 

 

 

 

 

28/5/2026

3

 

 

 

 

 

 

 

29/5/2026

3

 

 

 

 

 

 

 

30/5/2026

3

 

 

 

 

 

 

 

31/5/2026

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 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)#

1/5/2026

2

2/5/2026

2

3/5/2026

2

4/5/2026

3

 

 

 

 

 

 

 

5/5/2026

3

 

 

 

 

 

 

 

6/5/2026

3

 

 

 

 

 

 

 

7/5/2026

3

8/5/2026

2

 

 

 

 

 

 

 

9/5/2026

2

 

 

 

 

 

 

 

10/5/2026

2

11/5/2026

2

12/5/2026

2

13/5/2026

2

14/5/2026

2

15/5/2026

2

 

 

 

 

 

 

 

16/5/2026

2

 

 

 

 

 

 

 

17/5/2026

3

 

 

 

 

 

 

 

18/5/2026

2

 

 

 

 

 

 

 

19/5/2026

2

 

 

 

 

 

 

 

20/5/2026

2

 

 

 

 

 

 

 

21/5/2026

2

 

 

 

 

 

 

 

22/5/2026

2

 

 

 

 

 

 

 

23/5/2026

2

 

 

 

 

 

 

 

24/5/2026

2

 

 

 

 

 

 

 

25/5/2026

2

 

 

 

 

 

 

 

26/5/2026

2

 

 

 

 

 

 

 

27/5/2026

2

 

 

 

 

 

 

 

28/5/2026

2

 

 

 

 

 

 

 

29/5/2026

2

 

 

 

 

 

 

 

30/5/2026

3

 

 

 

 

 

 

 

31/5/2026

2

 

 

 

 

 

 

 

 

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)#

1/5/2026

*

2/5/2026

*

3/5/2026

*

4/5/2026

3

 

 

 

 

 

 

 

5/5/2026

3

 

 

 

 

 

 

 

6/5/2026

3

 

 

 

 

 

 

 

7/5/2026

3

 

 

 

 

 

 

 

8/5/2026

3

9/5/2026

3

 

 

 

 

 

 

 

10/5/2026

2

11/5/2026

3

12/5/2026

3

13/5/2026

3

14/5/2026

3

15/5/2026

3

 

 

 

 

 

 

 

16/5/2026

3

 

 

 

 

 

 

 

17/5/2026

3

 

 

 

 

 

 

 

18/5/2026

3

 

 

 

 

 

 

 

19/5/2026

3

 

 

 

 

 

 

 

20/5/2026

3

 

 

 

 

 

 

 

21/5/2026

4

 

 

 

 

 

 

 

22/5/2026

4

 

 

 

 

 

 

 

23/5/2026

4

 

 

 

 

 

 

 

24/5/2026

4

 

 

 

 

 

 

 

25/5/2026

4

 

 

 

 

 

 

 

26/5/2026

4

 

 

 

 

 

 

 

27/5/2026

3

 

 

 

 

 

 

 

28/5/2026

3

 

 

 

 

 

 

 

29/5/2026

3

 

 

 

 

 

 

 

30/5/2026

3

 

 

 

 

 

 

 

31/5/2026

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.