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

01/07/2025

07:00-23:00

54

46

01/07/2025

23:00-07:00

41

40

02/07/2025

07:00-23:00

45

42

02/07/2025

23:00-07:00

41

41

03/07/2025

07:00-23:00

55

51

03/07/2025

23:00-07:00

44

41

04/07/2025

07:00-23:00

54

49

04/07/2025

23:00-07:00

42

42

05/07/2025

07:00-23:00

52

48

05/07/2025

23:00-07:00

47

44

06/07/2025

07:00-23:00

50

47

06/07/2025

23:00-07:00

43

43

07/07/2025

07:00-23:00

44

42

07/07/2025

23:00-07:00

---

---

08/07/2025

07:00-23:00

49

49

08/07/2025

23:00-07:00

---

---

09/07/2025

07:00-23:00

---

---

09/07/2025

23:00-07:00

43

40

10/07/2025

07:00-23:00

46

46

10/07/2025

23:00-07:00

---

---

11/07/2025

07:00-23:00

42

41

11/07/2025

23:00-07:00

43

42

12/07/2025

07:00-23:00

53

48

12/07/2025

23:00-07:00

---

---

13/07/2025

07:00-23:00

48

48

13/07/2025

23:00-07:00

49

47

14/07/2025

07:00-23:00

47

45

14/07/2025

23:00-07:00

---

---

15/07/2025

07:00-23:00

48

43

15/07/2025

23:00-07:00

47

47

16/07/2025

07:00-23:00

---

---

16/07/2025

23:00-07:00

---

---

17/07/2025

07:00-23:00

49

49

17/07/2025

23:00-07:00

---

---

18/07/2025

07:00-23:00

55

52

18/07/2025

23:00-07:00

47

45

19/07/2025

07:00-23:00

53

47

19/07/2025

23:00-07:00

---

---

20/07/2025

07:00-23:00

52

52

20/07/2025

23:00-07:00

---

---

21/07/2025

07:00-23:00

41

41

21/07/2025

23:00-07:00

37

37

22/07/2025

07:00-23:00

37

35

22/07/2025

23:00-07:00

47

41

23/07/2025

07:00-23:00

45

45

23/07/2025

23:00-07:00

---

---

24/07/2025

07:00-23:00

---

---

24/07/2025

23:00-07:00

42

42

25/07/2025

07:00-23:00

---

---

25/07/2025

23:00-07:00

32

32

26/07/2025

07:00-23:00

---

---

26/07/2025

23:00-07:00

46

44

27/07/2025

07:00-23:00

53

48

27/07/2025

23:00-07:00

---

---

28/07/2025

07:00-23:00

---

---

28/07/2025

23:00-07:00

39

39

29/07/2025

07:00-23:00

57

57

29/07/2025

23:00-07:00

45

45

30/07/2025

07:00-23:00

56

55

30/07/2025

23:00-07:00

47

47

31/07/2025

07:00-23:00

58

56

31/07/2025

23:00-07:00

---

---

 

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

 

 

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

1/07/2025

07:00-23:00

57

43

51

40

1/07/2025

23:00-07:00

45

37

45

40

2/07/2025

07:00-19:00

45

41

52

45

2/07/2025

19:00-23:00

39

36

52

43

2/07/2025

23:00-07:00

42

40

44

35

3/07/2025

07:00-19:00

55

49

53

45

3/07/2025

19:00-23:00

42

40

49

38

3/07/2025

23:00-07:00

45

39

43

38

4/07/2025

07:00-19:00

54

47

50

39

4/07/2025

19:00-23:00

45

38

51

38

4/07/2025

23:00-07:00

45

38

45

38

5/07/2025

07:00-19:00

52

45

64

47

5/07/2025

19:00-23:00

44

36

50

40

5/07/2025

23:00-07:00

43

37

45

39

6/07/2025

07:00-23:00

56

45

43

37

6/07/2025

23:00-07:00

43

43

41

39

7/07/2025

07:00-19:00

44

42

36

36

7/07/2025

19:00-23:00

46

46

47

38

7/07/2025

23:00-07:00

45

45

45

38

8/07/2025

07:00-19:00

49

49

55

45

8/07/2025

19:00-23:00

44

44

49

43

8/07/2025

23:00-07:00

44

37

45

38

9/07/2025

07:00-19:00

---

---

50

44

9/07/2025

19:00-23:00

---

---

55

47

9/07/2025

23:00-07:00

44

40

45

39

10/07/2025

07:00-19:00

46

46

70

51

10/07/2025

19:00-23:00

40

38

56

43

10/07/2025

23:00-07:00

41

35

45

42

11/07/2025

07:00-19:00

42

41

45

42

11/07/2025

19:00-23:00

43

42

42

38

11/07/2025

23:00-07:00

45

39

44

39

12/07/2025

07:00-19:00

53

40

60

43

12/07/2025

19:00-23:00

43

43

49

40

12/07/2025

23:00-07:00

33

33

45

41

13/07/2025

07:00-23:00

42

36

48

41

13/07/2025

23:00-07:00

45

33

44

36

14/07/2025

07:00-19:00

47

45

56

46

14/07/2025

19:00-23:00

---

---

54

47

14/07/2025

23:00-07:00

36

36

45

39

15/07/2025

07:00-19:00

48

38

47

40

15/07/2025

19:00-23:00

44

44

59

49

15/07/2025

23:00-07:00

43

32

45

40

16/07/2025

07:00-19:00

---

---

54

43

16/07/2025

19:00-23:00

48

43

58

46

16/07/2025

23:00-07:00

30

30

45

40

17/07/2025

07:00-19:00

49

49

48

39

17/07/2025

19:00-23:00

38

38

48

43

17/07/2025

23:00-07:00

---

---

45

40

18/07/2025

07:00-19:00

55

43

60

41

18/07/2025

19:00-23:00

---

---

45

41

18/07/2025

23:00-07:00

39

39

45

40

19/07/2025

07:00-19:00

53

44

54

47

19/07/2025

19:00-23:00

47

42

53

44

19/07/2025

23:00-07:00

---

---

45

39

20/07/2025

07:00-23:00

52

46

48

41

20/07/2025

23:00-07:00

---

---

42

42

21/07/2025

07:00-19:00

41

41

60

53

21/07/2025

19:00-23:00

---

---

---

---

21/07/2025

23:00-07:00

37

36

41

34

22/07/2025

07:00-19:00

31

31

60

40

22/07/2025

19:00-23:00

47

39

43

34

22/07/2025

23:00-07:00

45

37

44

38

23/07/2025

07:00-19:00

45

45

59

40

23/07/2025

19:00-23:00

---

---

41

33

23/07/2025

23:00-07:00

44

44

44

39

24/07/2025

07:00-19:00

---

---

34

34

24/07/2025

19:00-23:00

39

36

39

30

24/07/2025

23:00-07:00

42

42

29

23

25/07/2025

07:00-19:00

---

---

42

36

25/07/2025

19:00-23:00

58

46

49

36

25/07/2025

23:00-07:00

32

32

45

40

26/07/2025

07:00-19:00

---

---

---

---

26/07/2025

19:00-23:00

---

---

35

31

26/07/2025

23:00-07:00

45

41

30

30

27/07/2025

07:00-23:00

53

42

57

36

27/07/2025

23:00-07:00

---

---

13

13

28/07/2025

07:00-19:00

---

---

52

42

28/07/2025

19:00-23:00

---

---

38

33

28/07/2025

23:00-07:00

42

38

39

32

29/07/2025

07:00-19:00

57

57

59

56

29/07/2025

19:00-23:00

---

---

35

35

29/07/2025

23:00-07:00

45

39

43

39

30/07/2025

07:00-19:00

56

55

45

45

30/07/2025

19:00-23:00

43

43

41

34

30/07/2025

23:00-07:00

28

28

42

37

31/07/2025

07:00-19:00

58

55

60

38

31/07/2025

19:00-23:00

---

---

43

37

31/07/2025

23:00-07:00

42

36

45

38

 

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).