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

04-Jun-10

14:43

15:13

Sunny

73

74

72

excavation in process and crane in operation

other construction site nearby

-

24.7

<5 m/s

B&K 2238

B&K 4231

10-Jun-10

15:53

16:23

Fine

74

75

73

excavation in process and crane in operation

other construction site nearby

-

25.4

<5 m/s

B&K 2238

B&K 4231

15-Jun-10

16:39

17:09

Sunny

70

71

68

excavation in process and crane in operation

other construction site nearby

-

29.4

<5 m/s

B&K 2238

B&K 4231

22-Jun-10

15:15

15:45

Cloudy

74

79

72

excavation in process and crane in operation

other construction site nearby

-

29.3

<5 m/s

B&K 2238

B&K 4231

28-Jun-10

16:45

17:15

Cloudy

72

72

71

excavation in process and crane in operation

other construction site nearby

-

25.5

<5 m/s

B&K 2238

B&K 4231

Min.

70

Max.

74

+ - Façade measurement