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-Feb-10

15:08

15:38

Sunny

steel fixing works and steel cage lifting in process

other construction site nearby

17.4

<5 m/s

B&K 2238

B&K 4231

11-Feb-10

16:16

16:46

Sunny

construction works in process

other construction site nearby

<5 m/s

B&K 2238

B&K 4231

18-Feb-10

14:02

14:32

Cloudy

steel fixing works and excavation in process

other construction site nearby

9.1

<5 m/s

B&K 2238

B&K 4231

23-Feb-10

14:41

15:11

Fine

excavation, crane and concreting in process

other construction site nearby

20.1

<5 m/s

B&K 2238

B&K 4231

Min.

Max.