Daytime Noise Monitoring Results

Station NM2

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

Compliance (Y/N)

Leq

L10

L90

Traffic noise

-

RION- NL31 (S/N 00983400)

RION - NC73 (S/N 10997142)

Y

10-Sep-10

14:35

15:05

Sunny

74

76

73

Crawler crane and Pre-bored piling from other sites

Traffic noise

-

27

0.2

RION- NL31 (S/N 00983400)

RION - NC73 (S/N 10997142)

Y

16-Sep-10

13:20

13:50

Sunny

74

76

73

Crawler crane and Pre-bored piling

Traffic noise

-

30

0.2

RION- NL31 (S/N 00983400)

RION - NC73 (S/N 10997142)

Y

22-Sep-10

11:30

12:00

Cloudy

74

75

73

Crawler crane and Pre-bored piling

Traffic noise

-

25

0.2

RION- NL31 (S/N 00983400)

RION - NC73 (S/N 10997142)

Y

28-Sep-10

13:20

13:50

Sunny

73

74

71

Crawler crane and Pre-bored piling

Traffic noise

-

29

0.4

RION- NL31 (S/N 00983400)

RION - NC73 (S/N 10997142)

Y

Min.

73

Max.

74