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

03-Oct-12

09:17

09:47

Sunny

64

65

62

Operation of Mobile crane

N.A

N.A

26.1

<5

B&K 2238   S/N : 2808432

B&K 4231  S/N: 3003246

09-Oct-12

13:02

13:32

Sunny

63

64

60

Loading and shorcrete

N.A

N.A

26.2

<5

B&K 2238   S/N : 2808432

B&K 4231  S/N: 3003246

15-Oct-12

09:54

10:24

Sunny

61

62

60

Shorcrete

N.A

N.A

26.3

<5

B&K 2238   S/N : 2381580

B&K 4231  S/N: 3003246

25-Oct-12

13:21

13:51

Sunny

60

62

59

No major construction works

N.A

N.A

25.8

<5

B&K 2238   S/N : 2381580

B&K 4231  S/N: 3003246

Min.

60

Max.

64