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

03-Aug-10

14:15

14:45

Sunny

70

71

69

excavation in process and crane in operation

other construction site nearby

-

29.1

<5 m/s

B&K 2238

B&K 4231

09-Aug-10

14:30

15:00

Sunny

67

68

67

excavation in process and crane in operation

other construction site nearby

-

29.6

<5 m/s

B&K 2238

B&K 4231

21-Aug-10

11:00

11:30

Sunny

72

73

70

excavation in process and crane in operation

other construction site nearby

-

29.4

<5 m/s

B&K 2238

B&K 4231

27-Aug-10

10:30

11:00

Sunny

70

71

68

excavation in process and crane in operation

other construction site nearby

-

28.8

<5 m/s

B&K 2238

B&K 4231

Min.

67

Max.

72

+ - Façade measurement