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

01/04/2019

07:00-23:00

58

52

01/04/2019

23:00-07:00

44

40

02/04/2019

07:00-23:00

48

48

02/04/2019

23:00-07:00

---

---

03/04/2019

07:00-23:00

54

54

03/04/2019

23:00-07:00

32

32

04/04/2019

07:00-23:00

44

41

04/04/2019

23:00-07:00

42

37

05/04/2019

07:00-23:00

59

56

05/04/2019

23:00-07:00

---

---

06/04/2019

07:00-23:00

---

---

06/04/2019

23:00-07:00

---

---

07/04/2019

07:00-23:00

59

55

07/04/2019

23:00-07:00

---

---

08/04/2019

07:00-23:00

55

55

08/04/2019

23:00-07:00

---

---

09/04/2019

07:00-23:00

55

53

09/04/2019

23:00-07:00

---

---

10/04/2019

07:00-23:00

48

48

10/04/2019

23:00-07:00

42

42

11/04/2019

07:00-23:00

58

55

11/04/2019

23:00-07:00

---

---

12/04/2019

07:00-23:00

48

45

12/04/2019

23:00-07:00

37

37

13/04/2019

07:00-23:00

41

38

13/04/2019

23:00-07:00

---

---

14/04/2019

07:00-23:00

51

51

14/04/2019

23:00-07:00

38

38

15/04/2019

07:00-23:00

48

44

15/04/2019

23:00-07:00

40

36

16/04/2019

07:00-23:00

30

30

16/04/2019

23:00-07:00

29

29

17/04/2019

07:00-23:00

---

---

17/04/2019

23:00-07:00

39

39

18/04/2019

07:00-23:00

---

---

18/04/2019

23:00-07:00

*

*

19/04/2019

07:00-23:00

*

*

19/04/2019

23:00-07:00

*

*

20/04/2019

07:00-23:00

*

*

20/04/2019

23:00-07:00

*

*

21/04/2019

07:00-23:00

49

46

21/04/2019

23:00-07:00

---

---

22/04/2019

07:00-23:00

47

46

22/04/2019

23:00-07:00

---

---

23/04/2019

07:00-23:00

47

47

23/04/2019

23:00-07:00

---

---

24/04/2019

07:00-23:00

58

58

24/04/2019

23:00-07:00

---

---

25/04/2019

07:00-23:00

49

49

25/04/2019

23:00-07:00

35

35

26/04/2019

07:00-23:00

52

46

26/04/2019

23:00-07:00

---

---

27/04/2019

07:00-23:00

---

---

27/04/2019

23:00-07:00

---

---

28/04/2019

07:00-23:00

38

35

28/04/2019

23:00-07:00

50

49

29/04/2019

07:00-23:00

---

---

29/04/2019

23:00-07:00

43

40

30/04/2019

07:00-23:00

59

54

30/04/2019

23:00-07:00

46

43

 

Note:

a.  * Unit L9 was not on load.

b.  “---“ 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

01/04/2019

07:00-19:00

58

45

45

42

01/04/2019

19:00-23:00

---

---

45

42

01/04/2019

23:00-07:00

44

35

45

38

02/04/2019

07:00-19:00

48

48

46

41

02/04/2019

19:00-23:00

---

---

46

43

02/04/2019

23:00-07:00

35

35

45

40

03/04/2019

07:00-19:00

54

54

46

43

03/04/2019

19:00-23:00

---

---

45

39

03/04/2019

23:00-07:00

39

28

44

40

04/04/2019

07:00-19:00

40

40

47

42

04/04/2019

19:00-23:00

44

42

47

38

04/04/2019

23:00-07:00

42

36

43

38

05/04/2019

07:00-23:00

59

47

54

39

05/04/2019

23:00-07:00

---

---

44

39

06/04/2019

07:00-19:00

---

---

44

42

06/04/2019

19:00-23:00

---

---

42

37

06/04/2019

23:00-07:00

27

27

44

41

07/04/2019

07:00-23:00

59

43

51

39

07/04/2019

23:00-07:00

---

---

44

40

08/04/2019

07:00-19:00

55

55

44

41

08/04/2019

19:00-23:00

---

---

44

39

08/04/2019

23:00-07:00

---

---

43

37

09/04/2019

07:00-19:00

55

53

46

40

09/04/2019

19:00-23:00

---

---

42

38

09/04/2019

23:00-07:00

---

---

41

37

10/04/2019

07:00-19:00

48

48

43

38

10/04/2019

19:00-23:00

---

---

42

38

10/04/2019

23:00-07:00

42

42

43

38

11/04/2019

07:00-19:00

58

51

46

37

11/04/2019

19:00-23:00

---

---

43

37

11/04/2019

23:00-07:00

37

33

45

39

12/04/2019

07:00-19:00

48

47

50

39

12/04/2019

19:00-23:00

44

39

46

34

12/04/2019

23:00-07:00

42

35

45

40

13/04/2019

07:00-19:00

---

---

47

42

13/04/2019

19:00-23:00

41

33

46

35

13/04/2019

23:00-07:00

39

37

45

42

14/04/2019

07:00-23:00

60

45

50

40

14/04/2019

23:00-07:00

38

35

44

41

15/04/2019

07:00-19:00

48

48

44

41

15/04/2019

19:00-23:00

39

35

47

38

15/04/2019

23:00-07:00

43

37

44

36

16/04/2019

07:00-19:00

30

30

46

39

16/04/2019

19:00-23:00

17

17

48

40

16/04/2019

23:00-07:00

34

29

45

42

17/04/2019

07:00-19:00

---

---

45

42

17/04/2019

19:00-23:00

---

---

44

41

17/04/2019

23:00-07:00

43

41

43

39

18/04/2019

07:00-19:00

---

---

48

43

18/04/2019

19:00-23:00

50

43

46

40

18/04/2019

23:00-07:00

39

34

44

40

19/04/2019

07:00-23:00

58

42

47

39

19/04/2019

23:00-07:00

45

34

45

42

20/04/2019

07:00-23:00

58

46

53

41

20/04/2019

23:00-07:00

44

37

45

41

21/04/2019

07:00-23:00

58

46

48

39

21/04/2019

23:00-07:00

45

43

44

40

22/04/2019

07:00-23:00

59

45

51

36

22/04/2019

23:00-07:00

40

33

43

38

23/04/2019

07:00-19:00

47

47

46

38

23/04/2019

19:00-23:00

---

---

42

37

23/04/2019

23:00-07:00

---

---

42

38

24/04/2019

07:00-19:00

58

58

46

37

24/04/2019

19:00-23:00

---

---

41

36

24/04/2019

23:00-07:00

41

41

42

38

25/04/2019

07:00-19:00

49

49

46

38

25/04/2019

19:00-23:00

---

---

48

37

25/04/2019

23:00-07:00

35

30

43

37

26/04/2019

07:00-19:00

52

52

51

41

26/04/2019

19:00-23:00

46

43

41

38

26/04/2019

23:00-07:00

45

39

45

41

27/04/2019

07:00-19:00

---

---

62

52

27/04/2019

19:00-23:00

43

37

60

49

27/04/2019

23:00-07:00

31

30

45

40

28/04/2019

07:00-23:00

58

39

59

45

28/04/2019

23:00-07:00

45

36

45

41

29/04/2019

07:00-19:00

---

---

47

43

29/04/2019

19:00-23:00

37

37

44

38

29/04/2019

23:00-07:00

44

37

45

41

30/04/2019

07:00-19:00

59

50

48

42

30/04/2019

19:00-23:00

---

---

48

41

30/04/2019

23:00-07:00

45

37

42

36

 

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.