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

01/03/2005

07:00-19:00

44

42

--

--

01/03/2005

19:00-23:00

--

--

--

--

01/03/2005

23:00-07:00

--

--

--

--

02/03/2005

07:00-19:00

46

44

38

36

02/03/2005

19:00-23:00

33

29

28

25

02/03/2005

23:00-07:00

36

30

31

25

03/03/2005

07:00-19:00

45

43

39

38

03/03/2005

19:00-23:00

34

32

30

28

03/03/2005

23:00-07:00

33

28

29

24

04/03/2005

07:00-19:00

43

41

38

38

04/03/2005

19:00-23:00

41

39

36

34

04/03/2005

23:00-07:00

35

31

31

26

05/03/2005

07:00-19:00

--

--

--

--

05/03/2005

19:00-23:00

32

32

27

27

05/03/2005

23:00-07:00

--

--

--

--

06/03/2005

07:00-23:00

46

40

38

36

06/03/2005

23:00-07:00

29

26

25

22

07/03/2005

07:00-19:00

--

--

--

--

07/03/2005

19:00-23:00

--

--

--

--

07/03/2005

23:00-07:00

35

31

30

26

08/03/2005

07:00-19:00

43

40

30

30

08/03/2005

19:00-23:00

35

35

30

30

08/03/2005

23:00-07:00

34

31

29

26

09/03/2005

07:00-19:00

40

36

36

33

09/03/2005

19:00-23:00

--

--

--

--

09/03/2005

23:00-07:00

33

31

28

26

10/03/2005

07:00-19:00

--

--

--

--

10/03/2005

19:00-23:00

41

41

36

36

10/03/2005

23:00-07:00

25

25

21

21

11/03/2005

07:00-19:00

--

--

--

--

11/03/2005

19:00-23:00

39

37

35

33

11/03/2005

23:00-07:00

37

34

32

29

12/03/2005

07:00-19:00

--

--

--

--

12/03/2005

19:00-23:00

34

33

29

28

12/03/2005

23:00-07:00

28

25

23

20

13/03/2005

07:00-23:00

39

34

33

28

13/03/2005

23:00-07:00

31

28

27

23

14/03/2005

07:00-19:00

--

--

--

--

14/03/2005

19:00-23:00

--

--

--

--

14/03/2005

23:00-07:00

--

--

--

--

15/03/2005

07:00-19:00

--

--

--

--

15/03/2005

19:00-23:00

--

--

--

--

15/03/2005

23:00-07:00

--

--

--

--

16/03/2005

07:00-19:00

35

35

30

30

16/03/2005

19:00-23:00

33

33

28

28

16/03/2005

23:00-07:00

25

25

20

20

17/03/2005

07:00-19:00

--

--

--

--

17/03/2005

19:00-23:00

--

--

--

--

17/03/2005

23:00-07:00

41

36

36

31

18/03/2005

07:00-19:00

--

--

--

--

18/03/2005

19:00-23:00

35

35

--

--

18/03/2005

23:00-07:00

35

30

30

25

19/03/2005

07:00-19:00

--

--

--

--

19/03/2005

19:00-23:00

45

45

40

40

19/03/2005

23:00-07:00

29

29

24

24

20/03/2005

07:00-23:00

32

30

27

27

20/03/2005

23:00-07:00

11

11

--

--

21/03/2005

07:00-19:00

--

--

--

--

21/03/2005

19:00-23:00

--

--

--

--

21/03/2005

23:00-07:00

20

20

15

15

22/03/2005

07:00-19:00

--

--

--

--

22/03/2005

19:00-23:00

45

40

41

39

22/03/2005

23:00-07:00

44

38

38

32

23/03/2005

07:00-19:00

--

--

--

--

23/03/2005

19:00-23:00

--

--

--

--

23/03/2005

23:00-07:00

34

31

29

26

24/03/2005

07:00-19:00

--

--

--

--

24/03/2005

19:00-23:00

44

41

40

36

24/03/2005

23:00-07:00

33

33

28

28

25/03/2005

07:00-23:00

37

34

32

29

25/03/2005

23:00-07:00

36

32

31

28

26/03/2005

07:00-23:00

40

34

33

30

26/03/2005

23:00-07:00

21

21

17

17

27/03/2005

07:00-23:00

24

24

--

--

27/03/2005

23:00-07:00

28

28

23

23

28/03/2005

07:00-23:00

41

39

35

32

28/03/2005

23:00-07:00

33

31

29

26

29/03/2005

07:00-19:00

--

--

--

--

29/03/2005

19:00-23:00

36

34

32

30

29/03/2005

23:00-07:00

40

37

35

32

30/03/2005

07:00-19:00

15

15

10

10

30/03/2005

19:00-23:00

43

34

32

29

30/03/2005

23:00-07:00

38

33

--

--

31/03/2005

07:00-19:00

46

46

--

--

31/03/2005

19:00-23:00

--

--

--

--

31/03/2005

23:00-07:00

16

16

11

11

 

 

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))

01/03/2005

14:00-14:30

--

14:40–15:10

--

04/03/2005

10:00-10:30

55.3

10:40–11:10

54.9

08/03/2005

14:00-14:30

--

14:40–15:10

45.8

11/03/2005

10:00-10:30

60.8

10:40–11:10

--

15/03/2005

14:00-14:30

56.7

14:40–15:10

--

18/03/2005

10:00-10:30

57.3

10:40–11:10

53.3

22/03/2005

14:00-14:30

58.4

14:40–15:10

48.0

25/03/2005

10:00-10:30

--

10:40–11:10

--

29/03/2005

14:00-14:30

51.4

14:40–15:10

53.1

 

 

Note:

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

2.                There was no construction work on site on 25/03/2005.

 

**  END OF REPORT  **