Daytime Noise Monitoring Results

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

05-May-14

09:17

09:47

Fine

68

69

68

N.A

operaction of excavator in near construction site

N.A

21.8

<5

B&K 2238  S/N : 2684503

B&K 4231  S/N: 3003246

12-May-14

09:40

10:10

Cloudy

68

68

67

N.A

operaction of excavator in near construction site

N.A

25.8

<5

B&K 2238  S/N : 2684503

B&K 4231  S/N: 3003246

19-May-14

13:49

14:19

Sunny

71

74

67

N.A

operaction of mobile crane in near construction site

N.A

28.9

<5

B&K 2238  S/N : 2684503

B&K 4231  S/N: 3004068

28-May-14

10:08

10:38

Sunny

70

72

69

N.A

operaction of mobile crane in near construction site

N.A

29.4

<5

B&K 2238  S/N : 2684503

B&K 4231  S/N: 3004068

Maximum

71

Minimum

68

Average

69