Restricted Hours Noise Monitoring Results -- Evening time

Station M3, Kwan Yick building

Date

Start Time

End Time

Weather

Noise level (dB(A)), 5 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-Jun-12

20:01

20:16

Fine

66

67

64

No outdoor construction noise

Mainly traffic noise

-

28.0

0.5

RION- NL31 (S/N 00603867)

RION - NC73 (S/N 10997142)

19-Jun-12

19:32

19:47

Fine

66

68

65

No outdoor construction noise

Mainly traffic noise

-

28.0

0.5

RION- NL31 (S/N 00603867)

RION - NC73 (S/N 10997142)

27-Jun-12

22:45

23:00

Fine

66

68

64

No outdoor construction noise

Mainly traffic noise

-

29.4

0.5

B&K 2238   S/N: 2385180

B&K 4231   S/N: 2656516

Min.

66

Max.

66

[1] The data (M3_Evening Time) of 5 and 19 June were provided by Contract No. DC/2007/23. Calibration certificates for the noise meter(s) and calibrator(s) used were included in the corresponding Monthly EM&A Report for this Contract