Daytime Noise Monitoring Results

Station M3, Kwa Yick Building

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

07-Apr-10

14:30

15:00

Trace Rain

69

71

67

Mobile cranes, excavator work

Traffic Noise

-

19

1.2

RION- NL31 (S/N 00410224)

RION - NC73 (S/N 10786708)

13-Apr-10

10:20

10:50

Fine

69

70

67

Mobile cranes

Traffic Noise

-

26

0.5

RION- NL31 (S/N 00410224)

RION - NC73 (S/N 10786708)

19-Apr-10

14:22

14:52

Fine

69

70

66

Mobile cranes, excavator work

Traffic Noise

-

23

0.8

RION- NL31 (S/N 00410224)

RION - NC73 (S/N 10786708)

30-Apr-10

08:20

08:50

Sunny

69

70

68

Mobile cranes, excavator work

Traffic Noise

-

22

0.8

RION- NL31 (S/N 00410224)

RION - NC73 (S/N 10786708)

Min.

69

Max.

69