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

04-Oct-10

10:00

10:30

Sunny

71

72

66

Pre-bored Piling

Traffic Noise

-

25

0.2

RION- NL31 (S/N 00983400)

RION - NC73 (S/N 10997142)

15-Oct-10

10:20

10:50

Fine

69

70

66

Pre-bored Piling, Crawler Crane

Traffic Noise

-

25

0.5

RION- NL31 (S/N 00983400)

RION - NC73 (S/N 10997142)

21-Oct-10

09:25

09:55

Fine

69

71

66

Pre-bored Piling, Crawler Crane

Traffic Noise

-

26

1.5

RION- NL31 (S/N 00983400)

RION - NC73 (S/N 10997142)

27-Oct-10

10:40

11:10

Sunny

69

71

68

Pre-bored Piling, Crawler Crane, breaker and excavator near site

Traffic noise

-

20

1.5

RION- NL31 (S/N 00410224)

RION - NC73 (S/N 10997142)

Min.

69

Max.

71