Daytime Noise Monitoring Results

Station NM5

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-Aug-13

9:30

10:00

Sunny

62

64

59

Drill Rig and Welding Machine

Traffic noise

-

31

0.4

RION-NL31 (S/N 00410224)

RION-NL73  (S/N 10997142)

07-Aug-13

13:15

13:45

Cloudy

61

64

59

Drill Rig and Welding Machine

Traffic noise

-

30

0.3

RION-NL31 (S/N 00410224)

RION-NL73  (S/N 10997142)

13-Aug-13

9:30

10:00

Cloudy

63

65

60

Drill rig and Welding machine

Traffic noise

-

28

1.2

RION-NL31 (S/N 00410224)

RION-NL73  (S/N 10997142)

19-Aug-13

10:35

11:05

Cloudy

60

62

58

Drill rig and Welding machine

Traffic noise

-

30

0.3

RION-NL31 (S/N 00410224)

RION-NL73  (S/N 10997142)

29-Aug-13

10:05

10:35

Sunny

63

65

61

Drill rig, welding machine and excavator

Traffic noise

-

30

0.5

RION-NL31 (S/N 00410224)

RION-NL73  (S/N 10997146)

Min.

60

Max.

63