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

06-Dec-10

15:34

16:04

Sunny

excavation in process and crane in operation

other construction site nearby

23.5

<5 m/s

B&K 2238

B&K 4231

18-Dec-10

13:00

13:30

Sunny

excavation in process and crane in operation

other construction site nearby

14.3

<5 m/s

B&K 2238

B&K 4231

24-Dec-10

11:23

11:53

Sunny

excavation in process and crane in operation

other construction site nearby

18.7

<5 m/s

B&K 2250L

B&K 4231

30-Dec-10

11:15

11:45

Sunny

excavation and drilling in process and crane in operation

other construction site nearby

17.8

<5 m/s

B&K 2238

B&K 4231

Min.

Max.

⁺ - Façade measurement