Daytime Noise Monitoring Results

Station M7, 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

09-Apr-10

13:00

13:30

Cloudy

72

76

62

Operation of mobile crane and granding broing activities

N.A

N.A

19.3

<5

B&K 2238   S/N : 2684503

B&K 4231  S/N: 2385180

14-Apr-10

13:30

14:00

Cloudy

64

67

60

Operation of Mobile crane

N.A

N.A

19.1

<5

B&K 2238   S/N : 2684503

B&K 4231  S/N: 2385180

20-Apr-10

15:00

15:30

Cloudy

65

67

63

Operation of Mobile crane and pipe piling work

N.A

N.A

23.3

<5

B&K 2238   S/N : 2684503

B&K 4231  S/N: 2385180

30-Apr-10

09:20

09:50

Sunny

61

62

60

Operation of Mobile crane and pipe piling work

N.A

N.A

21.3

<5

B&K 2238   S/N : 2684503

B&K 4231  S/N: 2385180

00:30

00:30

00:30

00:30

00:30

00:30

00:30

Min.

61

Max.

72