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

02-Feb-10

16:00

16:30

Fine

69

70

67

Mobile cranes, excavation works

Traffic noise

-

20

0.8

RION- NA27 (S/N 00201194)

RION - NC73 (S/N 10786708)

08-Feb-10

15:10

15:40

Fine

69

70

67

Mobile cranes

Traffic noise

-

17

1.2

RION- NA27 (S/N 00201194)

RION - NC73 (S/N 10786708)

18-Feb-10

11:00

11:30

Cloudy

68

70

66

Mobile cranes, excavator

Traffic noise

-

9

1.2

RION- NL31 (S/N 00410224)

RION - NC73 (S/N 10786708)

24-Feb-10

15:45

16:15

Fine

68

69

66

Mobile cranes, excavator

Traffic noise

-

22

1.0

RION- NL31 (S/N 00410224)

RION - NC73 (S/N 10786708)

Min.

68

Max.

69