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

06-May-11

14:35

15:05

Fine

69

70

67

Lifting, excavation work

Mainly traffic noise

-

27.0

0.3

RION- NL31 (S/N 00983400)

RION - NC73 (S/N 10997142)

12-May-11

10:25

10:55

Sunny

70

71

67

Lifting, excavation work

Mainly traffic noise

-

30.0

0.5

RION- NL31 (S/N 00983400)

RION - NC73 (S/N 10997142)

18-May-11

10:45

11:15

Sunny

69

70

66

Lifting, excavation work

Mainly traffic noise

-

25.0

0.4

RION- NL31 (S/N 00983400)

RION - NC73 (S/N 10997142)

24-May-11

13:20

13:50

Cloudy

69

70

66

Lifting, excavation work

Mainly traffic noise

-

22.0

0.5

RION- NL31 (S/N 00983400)

RION - NC73 (S/N 10997142)

30-May-11

10:43

11:13

Sunny

69

70

67

Lifting, excavation work

Mainly traffic noise

-

26.0

0.2

RION- NL31 (S/N 00983400)

RION - NC73 (S/N 10997142)

Min.

69

Max.

70

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