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

09-May-13

09:21

09:51

Fine

70.7

74.4

64.7

Operatorion of mobile crane and loading

Installing of Mini-pipe in adjacent construction site

N.A

25.2

<5

B&K 2238   S/N : 2381580

B&K 4231  S/N: 3003246

14-May-13

14:26

14:56

Sunny

66.2

68.3

63.4

Operatorion of mobile crane and loading

Installing of Mini-pipe in adjacent construction site

N.A

26.2

<5

B&K 2238   S/N : 2381580

B&K 4231  S/N: 3003246

21-May-13

09:16

09:46

Cloudy

64.1

64.3

61.2

No major construction works

N.A

N.A

25.7

<5

B&K 2238   S/N : 2381580

B&K 4231  S/N: 3004068

30-May-13

09:23

09:53

Sunny

65.1

66.0

63.0

No major construction works

N.A

N.A

29.3

<5

B&K 2238   S/N : 2381580

B&K 4231  S/N: 3004068

Min.

64.1

Max.

70.7