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

03-Apr-14

09:59

10:29

Fine

69

69

67

N.A

N.A

N.A

19.6

<5

B&K 2238  S/N : 2684503

B&K 4231  S/N: 3004068

10-Apr-14

09:59

10:29

Fine

68

68

66

N.A

N.A

N.A

22.1

<5

B&K 2238  S/N : 2684503

B&K 4231  S/N: 3004068

14-Apr-14

09:27

09:57

Fine

72

75

67

N.A

operaction of mobile crane in near construction site

N.A

22.8

<5

B&K 2238  S/N : 2684503

B&K 4231  S/N: 3004068

23-Apr-14

09:36

10:06

Cloudy

70

71

68

N.A

operaction of mobile crane in near construction site

N.A

22.4

<5

B&K 2238  S/N : 2684503

B&K 4231  S/N: 3004068

29-Apr-14

13:00

13:30

Sunny

73

74

70

N.A

operaction of mobile crane in near construction site

N.A

23.9

<5

B&K 2238  S/N : 2684503

B&K 4231  S/N: 3004068

Average

70

Minimum

68

Maximum

73