Restricted Hours Noise Monitoring Results -- Night time

Station M3, Kwa Yick Building

Date

Start Time

End Time

Weather

Noise level (dB(A)), 15 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-Aug-11

06:00

06:15

Fine

62

64

61

No outdoor construction noise

Mainly traffic noise

N.A

32.0

0.2

RION- NL31 (S/N 00983400)

RION - NC73 (S/N 10997142)

17-Aug-11

06:40

06:55

Fine

64

65

61

No outdoor construction noise

Mainly traffic noise

N.A

31.0

0.3

RION- NL31 (S/N 00983400)

RION - NC73 (S/N 10997142)

Min.

62

Max.

64

[1] The monitoring data on 16 and 30 July morning are for the restricted hour of previous day (15 and 29 July respectively)