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

04-Jun-10

20:53

20:58

Fine

65

66

65

excavation  in process

engine noise from barge anchored at nearby piers.

-

24.7

<5 m/s

B&K 2238

B&K 4231

20:58

21:03

Fine

65

66

65

21:03

21:08

Fine

65

66

65

10-Jun-10

19:01

19:06

Fine

67

67

66

excavation in process and crane in operation

cargo transport, engine noise from barge anchored at nearby piers.

-

25.4

<5 m/s

B&K 2238

B&K 4231

19:06

19:11

Fine

67

67

66

19:11

19:16

Fine

67

67

66

15-Jun-10

19:19

19:24

Fine

66

67

66

excavation in process and crane in operation

engine noise from barge anchored at nearby piers.

-

29.4

<5 m/s

B&K 2238

B&K 4231

19:24

19:29

Fine

66

67

65

19:29

19:34

Fine

66

67

65

22-Jun-10

19:04

19:09

Fine

68

70

67

excavation in process

other construction site nearby

-

29.3

<5 m/s

B&K 2238

B&K 4231

19:09

19:14

Fine

68

70

67

19:14

19:19

Fine

69

70

67

28-Jun-10

19:55

20:00

Fine

68

69

67

excavation in process

cargo transport, engine noise from barge anchored at nearby piers.

-

25.5

<5 m/s

B&K 2238

B&K 4231

20:00

20:05

Fine

68

69

67

20:05

20:10

Fine

68

69

67

Min.

65

Max.

69

+ - Façade measurement