Daytime Noise Monitoring Results

Station NM4

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

01-Dec-10

10:30

11:00

Sunny

69

70

67

Pre-bored piling, lifting

Traffic Noise

-

21

0.4

RION- NL31 (S/N 00983400)

RION - NC73 (S/N 10997142)

07-Dec-10

10:30

11:00

Sunny

69

71

67

Pre-bored piling, lifting

Traffic Noise

-

19

0.3

RION- NL31 (S/N 00983400)

RION - NC73 (S/N 10997142)

13-Dec-10

14:32

15:02

Fine

69

70

67

Pre-bored piling, lifting

Traffic Noise

-

22

0.4

RION- NL31 (S/N 00983400)

RION - NC73 (S/N 10997142)

24-Dec-10

10:20

10:50

Sunny

69

70

66

Pre-bored piling, lifting

Traffic Noise

-

19

0.2

RION- NL31 (S/N 00983400)

RION - NC73 (S/N 10997142)

30-Dec-10

10:33

11:03

Sunny

69

70

67

Lifting, excavation work

Traffic Noise

-

18

0.2

RION- NL31 (S/N 00410224)

RION - NC73 (S/N 10997142)

Min.

69

Max.

69