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-Jan-11

09:33

10:03

Cloudy

excavation and drilling in process and crane in operation

other construction site nearby

15.7

<5 m/s

B&K 2270

B&K 4231

11-Jan-11

15:19

15:49

Sunny

excavation and drilling in process and crane in operation

other construction site nearby

11.2

<5 m/s

B&K 2238

B&K 4231

17-Jan-11

16:15

16:45

Sunny

excavation and piling in process and crane in operation

other construction site nearby

11.8

<5 m/s

B&K 2238

B&K 4231

29-Jan-11

13:30

14:00

Sunny

excavation in process and crane in operation

other construction site nearby

12.9

<5 m/s

B&K 2238

B&K 4231

Min.

Max.

⁺ - Facade measurement