Daytime Noise Monitoring Results -- Normal weekday

Station M7a, Wah Ming House

Date

Start Time

End Time

Weather

Noise level (dB(A)), 30 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

06-Aug-13

13:01

13:31

Sunny

70.8

73.7

62.1

Mucking out

Mini piling in process in adjacent site

N.A

30

<5

B&K 2238   S/N : 2381580

B&K 4231  S/N: 3004068

12-Aug-13

17:09

17:39

Sunny

75.0

77.0

71.3

Operation of mobile crane

Mini piling in process in adjacent site

N.A

31

<5

B&K 2238   S/N : 2381580

B&K 4231  S/N: 3004068

22-Aug-13

10:11

10:41

Fine

74.6

79.5

63.4

Operation of mobile crane

Mini piling in process in adjacent site

N.A

29

<5

B&K 2238   S/N : 2381580

B&K 4231  S/N: 3004068

28-Aug-13

09:41

10:11

Sunny

62.8

62.8

59.9

Operation of mobile crane

Mini piling in process in adjacent site

N.A

30

<5

B&K 2238   S/N : 2381580

B&K 4231  S/N: 3004068

Min.

63.0

Max.

75.0