Daytime Noise Monitoring Results

Station NM6 Customs' Marine Base (Block H of Government Dockyard) Rooftop

Date

Start Time

End Time

Weather

Noise level (dB(A)), 30 min+

Major Construction Noise Source(s) Observed

Other Noise Source(s) Observed

Remarks

Mean Temp. (°C)

Mean Wind Speed (m/s)

Noise Meter Model / ID

Calibrator Model / ID

Leq

L10

L90

05-May-11

10:17

10:47

Sunny

66

68

63

excavation in process; crane in operation

other construction site nearby

-

23.6

<5 m/s

Rion NL-31

Rion NC-73

14-May-11

14:30

15:00

Cloudy

67

69

63

excavation in process; crane in operation

other construction site nearby

-

25.0

<5 m/s

Rion NL-31

Rion NC-73

20-May-11

09:41

10:11

Cloudy

68

69

66

excavation in process; crane in operation

other construction site nearby

-

27.0

<5 m/s

B&K 2250L

B&K 4231

26-May-11

14:29

14:59

Fine

71

74

68

excavation in process; crane in operation

other construction site nearby

-

25.5

<5 m/s

Rion NL-31

Rion NC-73

Min.

66

Max.

71

+ - Façade measurement