Night time Noise Monitoring Results

Station M3, Kwa Yick Building

Date

Start Time

End Time

Weather

Noise level (dB(A)), 15 min

Major Construction Noise Source(s) Observed

Other Noise Source(s) Observed

Remarks

Temp. (°C)

Wind Speed (m/s)

Noise Meter Model / ID

Calibrator Model / ID

Leq

L10

L90

02/07/2010-a

23:02

23:07

Fine

65.0

66.5

63.0

Operating bentonite filitering plant ,hydraulic extractor and generator

Traffic noise

N.A

30

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2385180

02/07/2010-b

23:07

23:12

Fine

65.0

66.5

63.0

Operating bentonite filitering plant ,hydraulic extractor and generator

Traffic noise

N.A

30

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2385180

02/07/2010-c

23:12

23:17

Fine

65.6

67.5

63.5

Operating bentonite filitering plant ,hydraulic extractor and generator

Traffic noise

N.A

30

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2385180

02-Jul-10

23:02

23:17

Fine

65

67

63

Operating bentonite filitering plant ,hydraulic extractor and generator

Traffic noise

N.A

30

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2385180

05/07/2010-a

23:00

23:05

Fine

65.4

66.0

64.5

Operating bentonite filitering plant ,hydraulic extractor and generator

Traffic noise

N.A

30.1

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2385180

05/07/2010-b

23:05

23:10

Fine

63.8

64.5

63.5

Operating bentonite filitering plant ,hydraulic extractor and generator

Traffic noise

N.A

30.1

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2385180

05/07/2010-c

23:10

23:15

Fine

63.3

68.0

62.5

Operating bentonite filitering plant ,hydraulic extractor and generator

Traffic noise

N.A

30.1

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2385180

05-Jul-10

23:00

23:15

Fine

64

66

64

Operating bentonite filitering plant ,hydraulic extractor and generator

Traffic noise

N.A

30.1

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2385180

12/07/2010-a

23:00

23:05

Fine

65.2

66.5

65.2

Operating bentonite filitering plant ,hydraulic extractor and generator

Traffic noise

N.A

30.2

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2385180

12/07/2010-b

23:05

23:10

Fine

64.4

65.5

62.5

Operating bentonite filitering plant ,hydraulic extractor and generator

Traffic noise

N.A

30.2

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2385180

12/07/2010-c

23:10

23:15

Fine

65.2

67.0

62.5

Operating bentonite filitering plant ,hydraulic extractor and generator

Traffic noise

N.A

30.2

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2385180

12-Jul-10

23:00

23:15

Fine

65

66

63

Operating bentonite filitering plant ,hydraulic extractor and generator

Traffic noise

N.A

30.2

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2385180

19/07/2010-a

23:00

23:05

Fine

65.0

66.0

63.0

Operating bentonite filitering plant ,hydraulic extractor and generator

Traffic noise

N.A

29.7

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2385180

19/07/2010-b

23:05

23:10

Fine

65.7

68.0

62.5

Operating bentonite filitering plant ,hydraulic extractor and generator

Traffic noise

N.A

29.7

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2385180

19/07/2010-c

23:10

23:15

Fine

64.6

66.5

60.5

Operating bentonite filitering plant ,hydraulic extractor and generator

Traffic noise

N.A

29.7

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2385180

19-Jul-10

23:00

23:15

Fine

65

67

62

Operating bentonite filitering plant ,hydraulic extractor and generator

Traffic noise

N.A

29.7

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2385180

26/07/2010-a

23:00

23:05

Fine

65.3

66.5

63.5

Operating bentonite filitering plant ,hydraulic extractor and generator

Traffic noise

N.A

29.7

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2385180

26/07/2010-b

23:05

23:10

Fine

66.1

68.0

63.0

Operating bentonite filitering plant ,hydraulic extractor and generator

Traffic noise

N.A

29.7

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2385180

26/07/2010-c

23:10

23:15

Fine

65.6

67.0

63.0

Operating bentonite filitering plant ,hydraulic extractor and generator

Traffic noise

N.A

29.7

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2385180

26-Jul-10

23:00

23:15

Fine

66

67

63

Operating bentonite filitering plant ,hydraulic extractor and generator

Traffic noise

N.A

29.7

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2385180

29/07/2010-a

23:00

23:05

Fine

65.8

67.5

63.0

Operating bentonite filitering plant ,hydraulic extractor and generator

Traffic noise

Additional monitoring

28.5

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2385180

29/07/2010-b

23:05

23:10

Fine

66.3

67.5

64.5

Operating bentonite filitering plant ,hydraulic extractor and generator

Traffic noise

Additional monitoring

28.5

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2385180

29/07/2010-c

23:10

23:15

Fine

65.7

67.0

64.0

Operating bentonite filitering plant ,hydraulic extractor and generator

Traffic noise

Additional monitoring

28.5

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2385180

29-Jul-10

23:00

23:15

Fine

66

67

64

Operating bentonite filitering plant ,hydraulic extractor and generator

Traffic noise

Additional monitoring

28.5

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2385180

00:05

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2385180

00:05

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2385180

00:05

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2385180

Min.

64

Max.

66