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-Dec-09

15:45

16:15

Sunny

69

71

67

Crane operation

Traffic noise

-

20

0.5

RION-NA27 (00201194)

RION-NC73 (10786708)

08-Dec-09

09:30

10:00

Cloudy

70

71

68

Crane operation, excavation work

Traffic noise

-

19

1.2

RION-NA27 (00201194)

RION-NC73 (10786708)

14-Dec-09

09:15

09:45

Fine

70

72

68

Piling, crane operation

Traffic noise

-

20

1.5

RION-NA27 (00201194)

RION-NC73 (10786708)

24-Dec-09

08:50

09:20

Sunny

69

71

67

Crane operation

Traffic noise

-

24

0.4

RION-NA27 (00201194)

RION-NC73 (10786708)

30-Dec-09

16:15

16:45

Cloudy

72

74

71

Breaker, excavation work

Traffic noise

-

17

1.2

RION-NA27 (00201194)

RION-NC73 (10786708)

Min.

69

Max.

72