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-Jan-13

09:11

09:41

Fine

66.1

65.6

60.9

No major construction works

operatorion of breaker

N.A

16.8

<5

B&K 2238   S/N : 2381580

B&K 4231  S/N: 3003246

08-Jan-13

14:24

14:54

Fine

66.4

69.0

58.5

No major construction works

operatorion of breaker

N.A

17.5

<5

B&K 2238   S/N : 2381580

B&K 4231  S/N: 3003246

17-Jan-13

15:19

15:49

Fine

63.5

64.7

61.8

No major construction works

operatorion of breaker

N.A

16.9

<5

B&K 2238   S/N : 2381580

B&K 4231  S/N: 3003246

21-Jan-13

09:35

10:05

Fine

61.1

62.7

59.0

Operatorion of mobile crane

operatorion of breaker

N.A

20.4

<5

B&K 2238   S/N : 2381580

B&K 4231  S/N: 3003246

30-Jan-13

09:18

09:48

Fine

69.5

72.5

63.1

Operatorion of mobile crane

N.A

N.A

18.1

<5

B&K 2238   S/N : 2381580

B&K 4231  S/N: 3003246

Min.

61.1

Max.

69.5