Daytime Noise Monitoring Results -- Normal weekday

Station M3, Kwan 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

02-Feb-11

10:22

10:52

Sunny

69

70

66

Excavation, lifting

Mainly traffic noise

-

15.0

0.3

RION- NL31 (S/N 00983400)

RION - NC73 (S/N 10997142)

08-Feb-11

11:00

11:30

Sunny

69

70

67

Crane, excavation work

Mainly traffic noise

-

21.0

0.2

RION- NL31 (S/N 00983400)

RION - NC73 (S/N 10997142)

14-Feb-11

15:00

15:30

Cloudy

69

70

67

Excavation work

Traffic noise

-

10.0

0.5

RION- NL31 (S/N 00983400)

RION - NC73 (S/N 10997142)

25-Feb-11

10:33

11:03

Sunny

69

70

66

Excavation, lifting

Mainly traffic noise

-

20.0

0.5

RION- NL31 (S/N 00410224)

RION - NC73 (S/N 10997142)

Min.

69

Max.

69

Remark: (*): The data 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