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

Leq

L10

L90

01-Dec-10

14:20

14:50

Sunny

73

75

72

Pre-bored pililng (near site)

Traffic noise

-

21

0.3

RION- NL31 (S/N 00983400)

RION - NC73 (S/N 10997142)

07-Dec-10

13:30

14:00

Sunny

71

72

70

Lifting

Traffic noise

-

19

0.3

RION- NL31 (S/N 00983400)

RION - NC73 (S/N 10997142)

13-Dec-10

09:15

09:45

Fine

72

73

71

Excavation work

Traffic noise

-

22

0.2

RION- NL31 (S/N 00983400)

RION - NC73 (S/N 10997142)

24-Dec-10

14:30

15:00

Sunny

72

73

70

Lifting, excavation work

Traffic noise

-

19

0.5

RION- NL31 (S/N 00983400)

RION - NC73 (S/N 10997142)

30-Dec-10

14:30

15:00

Sunny

73

74

72

Lifting, excavation work

Traffic noise

-

18

1.2

RION- NL31 (S/N 00410224)

RION - NC73 (S/N 10997142)

Min.

71

Max.

73