Restricted Hours Noise Monitoring Results (Evening Time)

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

Date

Start Time

End Time

Weather

Noise level (dB(A)), 5 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

01-Feb-12

20:17

20:22

Fine

66

67

66

excavation in process

traffic noise from nearby pier

-

15.6

<5 m/s

B&K 2238

B&K 4231

20:22

20:27

66

67

66

20:27

20:32

66

67

66

07-Feb-12

19:01

19:06

Fine

66

67

66

excavation in process

traffic noise from nearby pier

-

16.7

<5 m/s

B&K 2238

B&K 4231

19:06

19:11

66

67

66

19:11

19:16

66

67

66

13-Feb-12

20:21

20:26

Fine

65

66

65

excavation in process

traffic noise from nearby pier

-

19.1

<5 m/s

B&K 2238

B&K 4231

20:26

20:31

65

66

65

20:31

20:36

65

66

65

25-Feb-12

19:16

19:21

Fine

66

66

65

excavation in process; crane in operation

traffic noise from nearby pier

-

16.1

<5 m/s

B&K 2238

B&K 4231

19:21

19:26

65

66

65

19:26

19:31

66

66

65

Min.

65

Max.

66

+ - Façade measurement