NOISE

 

1. CONTINUOUS NOISE MONITORING DATA (OPERATION)

 

Site:                  Lamma Power Station Extension

Measurement Location:  Ash Lagoon

Measurement Parameter: 30-min Leq (07:00-23:00 hrs and 23:00-07:00 hrs on next day)

NSR:                   Hung Shing Ye

 

Date

Time

Calculated Noise Level at NSR

(dB(A))

Max

Avg

01/04/2026

07:00-23:00

---

---

01/04/2026

23:00-07:00

49

46

02/04/2026

07:00-23:00

42

40

02/04/2026

23:00-07:00

---

---

03/04/2026

07:00-23:00

39

39

03/04/2026

23:00-07:00

29

29

04/04/2026

07:00-23:00

47

45

04/04/2026

23:00-07:00

---

---

05/04/2026

07:00-23:00

53

46

05/04/2026

23:00-07:00

---

---

06/04/2026

07:00-23:00

44

41

06/04/2026

23:00-07:00

---

---

07/04/2026

07:00-23:00

---

---

07/04/2026

23:00-07:00

48

46

08/04/2026

07:00-23:00

50

50

08/04/2026

23:00-07:00

---

---

09/04/2026

07:00-23:00

---

---

09/04/2026

23:00-07:00

---

---

10/04/2026

07:00-23:00

---

---

10/04/2026

23:00-07:00

---

---

11/04/2026

07:00-23:00

---

---

11/04/2026

23:00-07:00

---

---

12/04/2026

07:00-23:00

---

---

12/04/2026

23:00-07:00

---

---

13/04/2026

07:00-23:00

42

42

13/04/2026

23:00-07:00

50

50

14/04/2026

07:00-23:00

---

---

14/04/2026

23:00-07:00

50

50

15/04/2026

07:00-23:00

41

41

15/04/2026

23:00-07:00

48

46

16/04/2026

07:00-23:00

43

41

16/04/2026

23:00-07:00

50

50

17/04/2026

07:00-23:00

43

39

17/04/2026

23:00-07:00

36

34

18/04/2026

07:00-23:00

53

50

18/04/2026

23:00-07:00

---

---

19/04/2026

07:00-23:00

45

43

19/04/2026

23:00-07:00

50

49

20/04/2026

07:00-23:00

54

50

20/04/2026

23:00-07:00

46

46

21/04/2026

07:00-23:00

55

50

21/04/2026

23:00-07:00

48

46

22/04/2026

07:00-23:00

53

50

22/04/2026

23:00-07:00

---

---

23/04/2026

07:00-23:00

47

47

23/04/2026

23:00-07:00

45

44

24/04/2026

07:00-23:00

37

37

24/04/2026

23:00-07:00

39

37

25/04/2026

07:00-23:00

54

51

25/04/2026

23:00-07:00

49

49

26/04/2026

07:00-23:00

47

43

26/04/2026

23:00-07:00

28

28

27/04/2026

07:00-23:00

---

---

27/04/2026

23:00-07:00

---

---

28/04/2026

07:00-23:00

56

54

28/04/2026

23:00-07:00

50

50

29/04/2026

07:00-23:00

50

49

29/04/2026

23:00-07:00

43

39

30/04/2026

07:00-23:00

54

52

30/04/2026

23:00-07:00

---

---

 

Note: “---“ represents the measured noise monitoring data lower than the established notional background level/discarded under strong wind/ bird sound.

 

From 8 to 13 April, the Ash Lagoon Station was disconnected from the analog signal input. Data transmission resumed on 13 April after on-site repairs were completed.

 

 

2. CONTINUOUS NOISE MONITORING DATA (CONSTRUCTION)

 

Site:                  Lamma Power Station Extension Construction

Measurement Location:  Ash Lagoon and Ching Lam

Measurement Parameter: 30-min Leq (07:00-19:00 hrs on normal weekdays)

                       5-min Leq (07:00-23:00 hrs on holidays and 19:00-23:00 hrs on all other days, and 23:00-07:00 hrs of next day)

 

Date

Time

Calculated

Noise

Level at

NSR at Long

Tsai

Tsuen/Hung

Shing Ye

(dB(A))

Calculated

Noise

Level at

NSR at the

school

within Tai

Wan San

Tsuen

(dB(A))

Max

Avg

Max

Avg

1/04/2026

07:00-19:00

---

---

44

39

1/04/2026

19:00-23:00

37

37

53

45

1/04/2026

23:00-07:00

44

34

45

32

2/04/2026

07:00-19:00

42

39

37

35

2/04/2026

19:00-23:00

48

48

44

44

2/04/2026

23:00-07:00

42

37

38

33

3/04/2026

07:00-23:00

59

47

60

53

3/04/2026

23:00-07:00

43

31

45

36

4/04/2026

07:00-23:00

47

44

55

43

4/04/2026

23:00-07:00

26

26

45

38

5/04/2026

07:00-23:00

54

40

60

46

5/04/2026

23:00-07:00

32

32

45

41

6/04/2026

07:00-23:00

58

43

60

50

6/04/2026

23:00-07:00

36

36

45

37

7/04/2026

07:00-23:00

---

---

60

53

7/04/2026

23:00-07:00

43

34

44

34

8/04/2026

07:00-19:00

50

50

45

45

8/04/2026

19:00-23:00

---

---

---

---

8/04/2026

23:00-07:00

---

---

---

---

9/04/2026

07:00-19:00

---

---

60

59

9/04/2026

19:00-23:00

---

---

58

51

9/04/2026

23:00-07:00

---

---

45

42

10/04/2026

07:00-19:00

---

---

56

50

10/04/2026

19:00-23:00

---

---

54

45

10/04/2026

23:00-07:00

---

---

45

40

11/04/2026

07:00-19:00

---

---

60

56

11/04/2026

19:00-23:00

---

---

60

57

11/04/2026

23:00-07:00

---

---

45

45

12/04/2026

07:00-23:00

---

---

60

54

12/04/2026

23:00-07:00

---

---

45

43

13/04/2026

07:00-19:00

42

42

59

54

13/04/2026

19:00-23:00

41

41

60

53

13/04/2026

23:00-07:00

45

40

45

39

14/04/2026

07:00-19:00

---

---

58

52

14/04/2026

19:00-23:00

---

---

50

42

14/04/2026

23:00-07:00

43

43

45

37

15/04/2026

07:00-19:00

41

41

56

50

15/04/2026

19:00-23:00

38

38

55

48

15/04/2026

23:00-07:00

43

43

45

41

16/04/2026

07:00-19:00

43

41

60

52

16/04/2026

19:00-23:00

37

37

56

48

16/04/2026

23:00-07:00

42

30

42

35

17/04/2026

07:00-19:00

43

37

57

40

17/04/2026

19:00-23:00

43

43

56

40

17/04/2026

23:00-07:00

43

34

40

34

18/04/2026

07:00-19:00

53

48

45

41

18/04/2026

19:00-23:00

---

---

38

32

18/04/2026

23:00-07:00

38

32

40

33

19/04/2026

07:00-23:00

55

43

60

48

19/04/2026

23:00-07:00

43

39

44

36

20/04/2026

07:00-19:00

54

45

63

50

20/04/2026

19:00-23:00

34

27

52

43

20/04/2026

23:00-07:00

41

36

45

41

21/04/2026

07:00-19:00

55

47

57

48

21/04/2026

19:00-23:00

46

46

51

40

21/04/2026

23:00-07:00

45

44

45

41

22/04/2026

07:00-19:00

53

49

59

49

22/04/2026

19:00-23:00

41

37

60

51

22/04/2026

23:00-07:00

41

38

44

37

23/04/2026

07:00-19:00

47

47

60

51

23/04/2026

19:00-23:00

40

40

51

31

23/04/2026

23:00-07:00

45

36

45

34

24/04/2026

07:00-19:00

---

---

67

53

24/04/2026

19:00-23:00

47

33

57

43

24/04/2026

23:00-07:00

39

36

45

40

25/04/2026

07:00-19:00

54

48

58

50

25/04/2026

19:00-23:00

43

34

60

52

25/04/2026

23:00-07:00

36

33

45

37

26/04/2026

07:00-23:00

57

42

59

49

26/04/2026

23:00-07:00

28

28

45

38

27/04/2026

07:00-19:00

---

---

59

55

27/04/2026

19:00-23:00

44

44

60

55

27/04/2026

23:00-07:00

44

41

44

40

28/04/2026

07:00-19:00

56

54

61

54

28/04/2026

19:00-23:00

37

34

60

52

28/04/2026

23:00-07:00

39

37

45

37

29/04/2026

07:00-19:00

54

50

56

44

29/04/2026

19:00-23:00

38

30

47

40

29/04/2026

23:00-07:00

43

34

42

34

30/04/2026

07:00-19:00

54

49

52

49

30/04/2026

19:00-23:00

30

30

54

43

30/04/2026

23:00-07:00

---

---

44

40

 

Note:

a.   --- represents the measured noise monitoring data lower than the established notional background level/discarded under strong wind.

b.   Continuous noise monitoring was also carried out at holidays & evening-time (07:00-23:00 hrs on holidays and 19:00-23:00 hrs on all other days) and night-time (23:00-07:00 hrs of next day).

c.   From 8 to 13 April, the Ash Lagoon Station was disconnected from the analog signal input. Data transmission resumed on 13 April after on-site repairs were completed.