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-Apr-12

13:06

13:36

Sunny

68

69

64

Drilling

N.A

N.A

24.5

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2656516

10-Apr-12

13:03

13:33

Sunny

65

68

60

Drilling

N.A

N.A

23.8

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2656516

16-Apr-12

09:26

09:56

Sunny

67

69

64

Drilling

N.A

N.A

26

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2656516

23-Apr-12

11:16

11:46

Cloudy

65

67

62

Operation of mobile crane and loading

N.A

N.A

25.4

<5

B&K 2238   S/N : 2684502

B&K 4231  S/N: 2656516

Min.

65

Max.

68