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

01/04/2018

07:00-23:00

36

36

01/04/2018

23:00-07:00

33

33

02/04/2018

07:00-23:00

45

43

02/04/2018

23:00-07:00

38

35

03/04/2018

07:00-23:00

57

57

03/04/2018

23:00-07:00

28

28

04/04/2018

07:00-23:00

52

52

04/04/2018

23:00-07:00

45

42

05/04/2018

07:00-23:00

48

46

05/04/2018

23:00-07:00

40

40

06/04/2018

07:00-23:00

43

41

06/04/2018

23:00-07:00

46

44

07/04/2018

07:00-23:00

45

45

07/04/2018

23:00-07:00

---

---

08/04/2018

07:00-23:00

50

45

08/04/2018

23:00-07:00

50

48

09/04/2018

07:00-23:00

---

---

09/04/2018

23:00-07:00

36

34

10/04/2018

07:00-23:00

53

49

10/04/2018

23:00-07:00

48

45

11/04/2018

07:00-23:00

---

---

11/04/2018

23:00-07:00

45

42

12/04/2018

07:00-23:00

47

47

12/04/2018

23:00-07:00

50

46

13/04/2018

07:00-23:00

55

55

13/04/2018

23:00-07:00

---

---

14/04/2018

07:00-23:00

---

---

14/04/2018

23:00-07:00

46

46

15/04/2018

07:00-23:00

47

44

15/04/2018

23:00-07:00

46

44

16/04/2018

07:00-23:00

32

32

16/04/2018

23:00-07:00

43

43

17/04/2018

07:00-23:00

55

51

17/04/2018

23:00-07:00

---

---

18/04/2018

07:00-23:00

27

27

18/04/2018

23:00-07:00

---

---

19/04/2018

07:00-23:00

---

---

19/04/2018

23:00-07:00

45

45

20/04/2018

07:00-23:00

37

37

20/04/2018

23:00-07:00

40

37

21/04/2018

07:00-23:00

---

---

21/04/2018

23:00-07:00

45

41

22/04/2018

07:00-23:00

42

42

22/04/2018

23:00-07:00

---

---

23/04/2018

07:00-23:00

---

---

23/04/2018

23:00-07:00

---

---

24/04/2018

07:00-23:00

---

---

24/04/2018

23:00-07:00

---

---

25/04/2018

07:00-23:00

---

---

25/04/2018

23:00-07:00

33

33

26/04/2018

07:00-23:00

---

---

26/04/2018

23:00-07:00

---

---

27/04/2018

07:00-23:00

34

34

27/04/2018

23:00-07:00

50

48

28/04/2018

07:00-23:00

46

46

28/04/2018

23:00-07:00

29

29

29/04/2018

07:00-23:00

53

53

29/04/2018

23:00-07:00

46

44

30/04/2018

07:00-23:00

35

35

30/04/2018

23:00-07:00

---

---

 

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

 

 

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

01/04/2018

07:00-23:00

56

40

48

38

01/04/2018

23:00-07:00

43

36

43

39

02/04/2018

07:00-23:00

57

42

55

36

02/04/2018

23:00-07:00

38

30

42

38

03/04/2018

07:00-19:00

57

57

43

37

03/04/2018

19:00-23:00

---

---

42

38

03/04/2018

23:00-07:00

39

33

43

38

04/04/2018

07:00-19:00

52

52

46

35

04/04/2018

19:00-23:00

---

---

54

41

04/04/2018

23:00-07:00

45

34

40

36

05/04/2018

07:00-23:00

52

42

47

36

05/04/2018

23:00-07:00

45

41

42

38

06/04/2018

07:00-19:00

43

43

53

43

06/04/2018

19:00-23:00

45

36

42

32

06/04/2018

23:00-07:00

45

32

43

32

07/04/2018

07:00-19:00

45

45

46

41

07/04/2018

19:00-23:00

---

---

39

34

07/04/2018

23:00-07:00

---

---

38

36

08/04/2018

07:00-23:00

54

42

47

37

08/04/2018

23:00-07:00

45

37

37

31

09/04/2018

07:00-19:00

---

---

48

44

09/04/2018

19:00-23:00

---

---

44

39

09/04/2018

23:00-07:00

44

36

42

37

10/04/2018

07:00-19:00

53

47

44

38

10/04/2018

19:00-23:00

---

---

43

39

10/04/2018

23:00-07:00

45

43

42

36

11/04/2018

07:00-19:00

---

---

41

37

11/04/2018

19:00-23:00

33

33

42

39

11/04/2018

23:00-07:00

45

38

43

35

12/04/2018

07:00-19:00

47

47

50

38

12/04/2018

19:00-23:00

---

---

46

39

12/04/2018

23:00-07:00

45

39

45

38

13/04/2018

07:00-19:00

55

55

45

41

13/04/2018

19:00-23:00

---

---

48

40

13/04/2018

23:00-07:00

33

33

45

41

14/04/2018

07:00-19:00

---

---

48

38

14/04/2018

19:00-23:00

---

---

50

39

14/04/2018

23:00-07:00

44

40

44

37

15/04/2018

07:00-23:00

47

43

60

39

15/04/2018

23:00-07:00

45

40

43

38

16/04/2018

07:00-19:00

32

32

50

38

16/04/2018

19:00-23:00

---

---

43

41

16/04/2018

23:00-07:00

44

41

44

41

17/04/2018

07:00-19:00

55

50

45

39

17/04/2018

19:00-23:00

36

31

49

41

17/04/2018

23:00-07:00

44

34

45

40

18/04/2018

07:00-19:00

---

---

48

44

18/04/2018

19:00-23:00

27

27

46

39

18/04/2018

23:00-07:00

45

36

44

38

19/04/2018

07:00-19:00

---

---

54

38

19/04/2018

19:00-23:00

---

---

40

38

19/04/2018

23:00-07:00

45

35

42

37

20/04/2018

07:00-19:00

37

37

41

36

20/04/2018

19:00-23:00

---

---

51

39

20/04/2018

23:00-07:00

43

37

43

37

21/04/2018

07:00-19:00

---

---

43

40

21/04/2018

19:00-23:00

---

---

44

41

21/04/2018

23:00-07:00

45

38

45

40

22/04/2018

07:00-23:00

45

41

48

39

22/04/2018

23:00-07:00

45

41

44

41

23/04/2018

07:00-19:00

---

---

43

39

23/04/2018

19:00-23:00

---

---

43

39

23/04/2018

23:00-07:00

43

37

44

38

24/04/2018

07:00-19:00

---

---

42

38

24/04/2018

19:00-23:00

---

---

45

39

24/04/2018

23:00-07:00

30

28

43

38

25/04/2018

07:00-19:00

---

---

43

41

25/04/2018

19:00-23:00

---

---

42

39

25/04/2018

23:00-07:00

44

40

41

38

26/04/2018

07:00-19:00

---

---

47

41

26/04/2018

19:00-23:00

---

---

45

39

26/04/2018

23:00-07:00

44

35

42

38

27/04/2018

07:00-19:00

---

---

50

41

27/04/2018

19:00-23:00

34

34

43

38

27/04/2018

23:00-07:00

45

42

43

39

28/04/2018

07:00-19:00

46

46

45

40

28/04/2018

19:00-23:00

---

---

44

41

28/04/2018

23:00-07:00

36

33

42

39

29/04/2018

07:00-23:00

59

41

43

34

29/04/2018

23:00-07:00

45

41

40

34

30/04/2018

07:00-19:00

---

---

38

34

30/04/2018

19:00-23:00

38

34

40

36

30/04/2018

23:00-07:00

34

34

40

32

 

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) with construction noise permit.