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

08-Sep-11

09:18

09:48

Sunny

66

67

62

Operation of mobile crane for loading activities

Hand held breaker in Wah chung House

N.A

30

<5

B&K 2238   S/N : 2684503

B&K 4231  S/N: 2385180

14-Sep-11

13:42

14:12

Sunny

63

64

61

Operation of mobile crane and loading

Hand held breaker in Wah chung House

N.A

29

<5

B&K 2238   S/N : 2684503

B&K 4231  S/N: 2385180

20-Sep-11

14:47

15:17

Cloudy

64

65

62

Operation of mobile crane and loading

N.A

N.A

26

<5

B&K 2238   S/N : 2684503

B&K 4231  S/N: 2385180

26-Sep-11

09:27

09:57

Cloudy

66

69

62

Operation of mobile crane and loading

N.A

N.A

27

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2656516

Min.

63

Max.

66