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

06-May-11

10:30

11:00

Fine

73

75

72

Excavation, welding (near site)

Mainly traffic noise

-

27

0.3

RION- NL31 (S/N 00983400)

RION - NC73 (S/N 10997142)

12-May-11

14:35

15:05

Sunny

73

75

73

Excavation work (near site)

Mainly traffic noise

-

30

0.3

RION- NL31 (S/N 00983400)

RION - NC73 (S/N 10997142)

18-May-11

13:40

14:10

Sunny

73

74

72

Welding, excavation work (near site)

Mainly traffic noise

-

25

0.5

RION- NL31 (S/N 00983400)

RION - NC73 (S/N 10997142)

00:30

24-May-11

13:20

13:50

Cloudy

72

74

70

Excavation work (near site)

Mainly traffic noise

-

22

0.5

RION- NL31 (S/N 00983400)

RION - NC73 (S/N 10997142)

30-May-11

14:45

15:15

Sunny

71

73

70

Excavation work (near site)

Mainly traffic noise

-

26

0.4

RION- NL31 (S/N 00983400)

RION - NC73 (S/N 10997142)

Min.

71

Max.

73