NOISE

 

a. CONTINUOUS NOISE MONITORING DATA

 

Site:

Lamma Power Station Extension – Superstructure and E&M Works

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)

 

NSR-1:

Long Tsai Tsuen/Hung Shing Ye

NSR-2:

School within Tai Wan San Tsuen

 

Date

Time

Calculated Noise Level at NSR-1

(dB(A))

Calculated Noise Level at NSR-2

(dB(A))

Max

Avg

Max

Avg

01/11/2005

07:00-19:00

--

--

--

--

01/11/2005

19:00-23:00

20

20

15

15

01/11/2005

23:00-07:00

39

34

34

29

02/11/2005

07:00-19:00

42

37

37

32

02/11/2005

19:00-23:00

--

--

--

--

02/11/2005

23:00-07:00

37

31

32

27

03/11/2005

07:00-19:00

33

30

28

25

03/11/2005

19:00-23:00

--

--

--

--

03/11/2005

23:00-07:00

37

33

33

28

04/11/2005

07:00-19:00

38

35

33

30

04/11/2005

19:00-23:00

37

37

33

33

04/11/2005

23:00-07:00

45

37

40

32

05/11/2005

07:00-19:00

38

35

33

30

05/11/2005

19:00-23:00

28

28

23

23

05/11/2005

23:00-07:00

38

32

33

27

06/11/2005

07:00-23:00

47

38

42

33

06/11/2005

23:00-07:00

43

35

39

31

07/11/2005

07:00-19:00

43

40

38

35

07/11/2005

19:00-23:00

31

31

26

26

07/11/2005

23:00-07:00

35

33

30

28

08/11/2005

07:00-19:00

--

--

--

--

08/11/2005

19:00-23:00

--

--

--

--

08/11/2005

23:00-07:00

26

23

21

18

09/11/2005

07:00-19:00

--

--

--

--

09/11/2005

19:00-23:00

--

--

--

--

09/11/2005

23:00-07:00

38

32

33

27

10/11/2005

07:00-19:00

44

39

39

35

10/11/2005

19:00-23:00

31

31

27

27

10/11/2005

23:00-07:00

35

31

31

26

11/11/2005

07:00-19:00

39

36

35

32

11/11/2005

19:00-23:00

33

33

28

28

11/11/2005

23:00-07:00

40

35

36

30

12/11/2005

07:00-19:00

39

39

34

34

12/11/2005

19:00-23:00

31

29

26

24

12/11/2005

23:00-07:00

35

30

30

26

13/11/2005

07:00-23:00

45

40

40

35

13/11/2005

23:00-07:00

43

39

39

35

14/11/2005

07:00-19:00

38

33

33

28

14/11/2005

19:00-23:00

34

34

29

29

14/11/2005

23:00-07:00

34

32

30

28

15/11/2005

07:00-19:00

38

34

33

29

15/11/2005

19:00-23:00

--

--

--

--

15/11/2005

23:00-07:00

39

32

34

27

16/11/2005

07:00-19:00

--

--

--

--

16/11/2005

19:00-23:00

28

26

24

21

16/11/2005

23:00-07:00

36

31

31

27

17/11/2005

07:00-19:00

--

--

--

--

17/11/2005

19:00-23:00

32

32

27

27

17/11/2005

23:00-07:00

39

37

34

32

18/11/2005

07:00-19:00

--

--

--

--

18/11/2005

19:00-23:00

--

--

--

--

18/11/2005

23:00-07:00

37

32

32

27

19/11/2005

07:00-19:00

30

30

25

25

19/11/2005

19:00-23:00

37

31

32

26

19/11/2005

23:00-07:00

40

33

35

29

20/11/2005

07:00-23:00

43

37

38

32

20/11/2005

23:00-07:00

45

38

41

33

21/11/2005

07:00-19:00

49

45

38

34

21/11/2005

19:00-23:00

33

33

29

29

21/11/2005

23:00-07:00

36

31

32

27

22/11/2005

07:00-19:00

--

--

--

--

22/11/2005

19:00-23:00

32

30

27

25

22/11/2005

23:00-07:00

35

32

30

27

23/11/2005

07:00-19:00

35

32

30

27

23/11/2005

19:00-23:00

--

--

--

--

23/11/2005

23:00-07:00

35

31

30

27

24/11/2005

07:00-19:00

40

37

36

33

24/11/2005

19:00-23:00

33

33

28

28

24/11/2005

23:00-07:00

43

35

38

30

25/11/2005

07:00-19:00

--

--

--

--

25/11/2005

19:00-23:00

--

--

--

--

25/11/2005

23:00-07:00

38

32

33

28

26/11/2005

07:00-19:00

--

--

--

--

26/11/2005

19:00-23:00

38

36

33

31

26/11/2005

23:00-07:00

36

30

31

25

27/11/2005

07:00-23:00

46

39

38

34

27/11/2005

23:00-07:00

38

33

33

28

28/11/2005

07:00-19:00

--

--

--

--

28/11/2005

19:00-23:00

--

--

--

--

28/11/2005

23:00-07:00

35

30

30

25

29/11/2005

07:00-19:00

--

--

--

--

29/11/2005

19:00-23:00

42

42

38

38

29/11/2005

23:00-07:00

37

32

32

27

30/11/2005

07:00-19:00

--

--

--

--

30/11/2005

19:00-23:00

--

--

--

--

30/11/2005

23:00-07:00

37

31

32

27

 

 

b. MANUAL NOISE MONITORING DATA

 

Site:

Lamma Power Station Extension – Transmission System

Measurement Location:

Pak Kok Tsui

Measurement Parameter:

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

 

N4:

Pak Kok Tsui No.2

N5:

Pak Kok Tsui No.8

 

Date

Time

Corrected

Noise Level

at N4 (dB(A))

Time

Corrected

Noise Level

at N5 (dB(A))

01/11/2005

10:00-10:30

50.7

10:40–11:10

--

04/11/2005

14:00-14:30

56.4

14:40–15:10

--

08/11/2005

10:00-10:30

52.8

10:40–11:10

--

11/11/2005

14:00-14:30

56.7

14:40–15:10

--

15/11/2005

10:00-10:30

41.6

10:40–11:10

47.3

18/11/2005

14:00-14:30

52.0

14:40–15:10

--

22/11/2005

10:00-10:30

54.0

10:40–11:10

41.6

25/11/2005

14:00-14:30

51.4

14:40–15:10

--

29/11/2005

10:00-10:30

49.0

10:40–11:10

--

 

 

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

 

**  END OF REPORT  **