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

2/2/2025

20

18

16

7

2/2/2025

15:00 - 15:59

18

16

14

8/2/2025

76

67

52

29

16:00 - 16:59

20

16

15

14/2/2025

26

28

26

8

17:00 - 17:59

17

17

14

20/2/2025

37

36

30

7

8/2/2025

15:00 - 15:59

99

85

64

26/2/2025

45

51

38

13

16:00 - 16:59

97

84

60

 

 

 

 

 

17:00 - 17:59

85

71

59

 

 

 

 

 

14/2/2025

15:00 - 15:59

25

28

36

 

 

 

 

 

16:00 - 16:59

25

34

23

 

 

 

 

 

17:00 - 17:59

29

36

26

 

 

 

 

 

 

20/2/2025

15:00 - 15:59

41

38

30

 

 

 

 

 

 

16:00 - 16:59

37

32

26

 

 

 

 

 

 

17:00 - 17:59

25

29

24

 

 

 

 

 

26/2/2025

15:00 - 15:59

23

38

20

16:00 - 16:59

28

81

33

17:00 - 17:59

46

76

33

 

 

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

Date

Daily Maximum Stack NOx concentration (mg/Nm3)#

1/2/2025

*

2/2/2025

*

3/2/2025

73

4/2/2025

75

5/2/2025

74

6/2/2025

75

7/2/2025

79

8/2/2025

*

9/2/2025

*

10/2/2025

76

11/2/2025

73

12/2/2025

66

13/2/2025

75

14/2/2025

71

15/2/2025

*

16/2/2025

*

17/2/2025

79

18/2/2025

74

19/2/2025

78

20/2/2025

76

21/2/2025

79

22/2/2025

*

23/2/2025

*

24/2/2025

75

25/2/2025

74

26/2/2025

71

 

 

 

 

 

 

 

27/2/2025

73

 

 

 

 

 

 

 

28/2/2025

76

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Note:

 

 

 

 

 

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

 

 

 

 

* - 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)#

1/2/2025

3

2/2/2025

3

3/2/2025

3

4/2/2025

3

5/2/2025

3

 

 

 

 

 

 

 

6/2/2025

3

7/2/2025

3

8/2/2025

3

9/2/2025

3

10/2/2025

3

11/2/2025

3

 

 

 

 

 

 

 

12/2/2025

3

 

 

 

 

 

 

 

13/2/2025

3

 

 

 

 

 

 

 

14/2/2025

3

 

 

 

 

 

 

 

15/2/2025

3

 

 

 

 

 

 

 

16/2/2025

3

 

 

 

 

 

 

 

17/2/2025

4

 

 

 

 

 

 

 

18/2/2025

4

 

 

 

 

 

 

 

19/2/2025

3

 

 

 

 

 

 

 

20/2/2025

3

 

 

 

 

 

 

 

21/2/2025

3

 

 

 

 

 

 

 

22/2/2025

3

 

 

 

 

 

 

 

23/2/2025

3

 

 

 

 

 

 

 

24/2/2025

4

 

 

 

 

 

 

 

25/2/2025

*

 

 

 

 

 

 

 

26/2/2025

*

 

 

 

 

 

 

 

27/2/2025

*

 

 

 

 

 

 

 

28/2/2025

*

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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°C, 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)#

1/2/2025

5^

2/2/2025

5^

3/2/2025

6^

4/2/2025

8^

5/2/2025

7^

 

 

 

 

 

 

 

6/2/2025

7^

7/2/2025

6^

8/2/2025

8^

9/2/2025

8^

10/2/2025

7^

11/2/2025

3

 

 

 

 

 

 

 

12/2/2025

4

 

 

 

 

 

 

 

13/2/2025

4

 

 

 

 

 

 

 

14/2/2025

4

 

 

 

 

 

 

 

15/2/2025

5^

 

 

 

 

 

 

 

16/2/2025

4

 

 

 

 

 

 

 

17/2/2025

6^

 

 

 

 

 

 

 

18/2/2025

6^

 

 

 

 

 

 

 

19/2/2025

6^

 

 

 

 

 

 

 

20/2/2025

4

 

 

 

 

 

 

 

21/2/2025

5^

 

 

 

 

 

 

 

22/2/2025

4

 

 

 

 

 

 

 

23/2/2025

7^

 

 

 

 

 

 

 

24/2/2025

7^

 

 

 

 

 

 

 

25/2/2025

6^

 

 

 

 

 

 

 

26/2/2025

5^

 

 

 

 

 

 

 

27/2/2025

5^

 

 

 

 

 

 

 

28/2/2025

5^

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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°C, 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)#

 

 

 

 

 

 

 

1/2/2025

*

2/2/2025

*

3/2/2025

*

4/2/2025

*

5/2/2025

*

 

 

 

 

 

 

 

6/2/2025

*

7/2/2025

*

8/2/2025

*

9/2/2025

*

10/2/2025

*

11/2/2025

*

 

 

 

 

 

 

 

12/2/2025

*

 

 

 

 

 

 

 

13/2/2025

*

 

 

 

 

 

 

 

14/2/2025

*

 

 

 

 

 

 

 

15/2/2025

*

 

 

 

 

 

 

 

16/2/2025

*

 

 

 

 

 

 

 

17/2/2025

*

 

 

 

 

 

 

 

18/2/2025

*

 

 

 

 

 

 

 

19/2/2025

4

 

 

 

 

 

 

 

20/2/2025

*

 

 

 

 

 

 

 

21/2/2025

*

 

 

 

 

 

 

 

22/2/2025

*

 

 

 

 

 

 

 

23/2/2025

*

 

 

 

 

 

 

 

24/2/2025

4

 

 

 

 

 

 

 

25/2/2025

4

 

 

 

 

 

 

 

26/2/2025

3

 

 

 

 

 

 

 

27/2/2025

3

 

 

 

 

 

 

 

28/2/2025

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°C, 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.