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

01-Aug-11

09:20

09:50

Cloudy

69

71

63

Operation of mobile crane and excavator

Work renovation inside Wah Kei House

N.A

29.5

<5

B&K 2238   S/N : 2684503

B&K 4231  S/N: 2385180

11-Aug-11

10:35

11:05

Sunny

69

72

65

Operation of mobile crane and excavator

Helicoptor flew overhead

N.A

28.7

<5

B&K 2238   S/N : 2684503

B&K 4231  S/N: 2385180

17-Aug-11

09:30

10:00

Sunny

63

64

61

Operation of mobile crane and excavator

Hand held breaker in Wah Kei House

N.A

28.7

<5

B&K 2238   S/N : 2684503

B&K 4231  S/N: 2385180

23-Aug-11

13:56

14:26

Sunny

64

65

62

Operation of mobile crane and excavator

Hand held breaker in Wah Kei House

N.A

29.8

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2385180

29-Aug-11

09:43

10:13

Foggy

63

64

61

Operation of mobile crane

Hand held breaker in Wah chung House

N.A

30.6

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2385180

Min.

63

Max.

69