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

01-Nov-11

10:10

10:40

Sunny

69

71

67

No major construction works

N.A

N.A

24.6

<5

B&K 2238   S/N : 2684503

B&K 4231  S/N: 2385180

10-Nov-11

16:41

17:11

Cloudy

62

63

58

Excavation

N.A

N.A

19.4

<5

B&K 2238   S/N : 2684503

B&K 4231  S/N: 2385180

15-Nov-11

09:41

10:11

Sunny

63

63

60

No major construction works

Operation of mobile breaker near Wah Cheung House

N.A

23.5

<5

B&K 2238   S/N : 2381580

B&K 4231  S/N: 2385180

21-Nov-11

09:32

10:02

Sunny

68

69

66

Drilling

Operation of mobile breaker near Wah Cheung House

N.A

21.5

<5

B&K 2238   S/N : 2381580

B&K 4231  S/N: 2385180

Min.

62

Max.

69