NOISE

 

a. CONTINUOUS NOISE MONITORING DATA

 

Site:

Lamma Power Station Extension – Superstructure

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

01/05/2004

07:00-23:00

44

38

39

35

01/05/2004

23:00-07:00

34

29

29

25

02/05/2004

07:00-23:00

46

43

41

37

02/05/2004

23:00-07:00

43

38

38

33

03/05/2004

07:00-19:00

48

44

40

37

03/05/2004

19:00-23:00

44

44

40

39

03/05/2004

23:00-07:00

31

28

26

23

04/05/2004

07:00-19:00

46

43

40

37

04/05/2004

19:00-23:00

44

43

40

38

04/05/2004

23:00-07:00

37

31

32

26

05/05/2004

07:00-19:00

47

44

42

38

05/05/2004

19:00-23:00

44

44

40

39

05/05/2004

23:00-07:00

38

33

34

28

06/05/2004

07:00-19:00

47

44

40

37

06/05/2004

19:00-23:00

44

44

39

38

06/05/2004

23:00-07:00

32

29

27

25

07/05/2004

07:00-19:00

45

42

39

36

07/05/2004

19:00-23:00

45

44

41

39

07/05/2004

23:00-07:00

43

35

38

30

08/05/2004

07:00-19:00

44

41

39

36

08/05/2004

19:00-23:00

44

43

39

37

08/05/2004

23:00-07:00

37

32

33

27

09/05/2004

07:00-23:00

46

41

40

34

09/05/2004

23:00-07:00

32

28

27

23

10/05/2004

07:00-19:00

48

45

42

39

10/05/2004

19:00-23:00

46

45

41

41

10/05/2004

23:00-07:00

--

--

--

--

11/05/2004

07:00-19:00

51

48

43

40

11/05/2004

19:00-23:00

44

43

40

39

11/05/2004

23:00-07:00

39

36

35

31

12/05/2004

07:00-19:00

47

43

42

39

12/05/2004

19:00-23:00

45

44

40

40

12/05/2004

23:00-07:00

24

24

19

19

13/05/2004

07:00-19:00

48

44

42

39

13/05/2004

19:00-23:00

46

45

41

40

13/05/2004

23:00-07:00

--

--

--

--

14/05/2004

07:00-19:00

50

48

45

42

14/05/2004

19:00-23:00

--

--

--

--

14/05/2004

23:00-07:00

31

27

26

22

15/05/2004

07:00-19:00

48

45

38

35

15/05/2004

19:00-23:00

43

42

39

37

15/05/2004

23:00-07:00

39

35

34

30

16/05/2004

07:00-23:00

53

44

41

38

16/05/2004

23:00-07:00

43

36

38

31

17/05/2004

07:00-19:00

48

44

43

38

17/05/2004

19:00-23:00

47

46

42

41

17/05/2004

23:00-07:00

34

31

29

26

18/05/2004

07:00-19:00

47

44

40

38

18/05/2004

19:00-23:00

45

45

41

40

18/05/2004

23:00-07:00

37

33

32

28

19/05/2004

07:00-19:00

47

44

42

39

19/05/2004

19:00-23:00

45

45

41

40

19/05/2004

23:00-07:00

34

31

30

26

20/05/2004

07:00-19:00

44

41

39

36

20/05/2004

19:00-23:00

44

43

39

39

20/05/2004

23:00-07:00

42

36

38

32

21/05/2004

07:00-19:00

47

44

41

39

21/05/2004

19:00-23:00

46

45

41

39

21/05/2004

23:00-07:00

39

36

35

32

22/05/2004

07:00-19:00

47

45

43

40

22/05/2004

19:00-23:00

46

45

41

38

22/05/2004

23:00-07:00

32

28

28

24

23/05/2004

07:00-23:00

46

45

41

38

23/05/2004

23:00-07:00

34

30

29

25

24/05/2004

07:00-19:00

49

46

44

39

24/05/2004

19:00-23:00

46

46

41

41

24/05/2004

23:00-07:00

19

19

15

15

25/05/2004

07:00-19:00

49

44

44

39

25/05/2004

19:00-23:00

43

42

39

36

25/05/2004

23:00-07:00

33

31

29

26

26/05/2004

07:00-23:00

49

43

44

37

26/05/2004

23:00-07:00

42

36

37

29

27/05/2004

07:00-19:00

44

41

37

36

27/05/2004

19:00-23:00

44

43

39

35

27/05/2004

23:00-07:00

34

34

30

29

28/05/2004

07:00-19:00

45

42

41

38

28/05/2004

19:00-23:00

44

43

38

32

28/05/2004

23:00-07:00

44

34

40

30

29/05/2004

07:00-19:00

44

42

39

36

29/05/2004

19:00-23:00

43

43

38

35

29/05/2004

23:00-07:00

40

32

29

24

30/05/2004

07:00-23:00

45

43

40

37

30/05/2004

23:00-07:00

31

27

27

23

31/05/2004

07:00-19:00

48

45

43

39

31/05/2004

19:00-23:00

42

41

37

35

31/05/2004

23:00-07:00

42

37

33

30

 

 

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))

17/05/2004

14:51–15:21

52.6

15:26–15:56

38.6

20/05/2004

11:00–11:30

57.5

11:37–12:07

62.5

24/05/2004

14:25–14:55

57.3

14:58–15:28

51.7

27/05/2004

11:00–11:30

--

11:34–12:04

--

31/05/2004

14:24–14:54

--

14:57–15:27

61.5

 

 

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

 

**  END OF REPORT  **