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

06-Nov-10

10:30

11:00

Cloudy

72

74

70

excavation and drilling in process and crane in operation

other construction site nearby

-

18.8

<5 m/s

Rion NL-31

Rion NC-73

12-Nov-10

13:29

13:59

Sunny

70

73

65

excavation in process and crane in operation

other construction site nearby

-

21.7

<5 m/s

B&K 2238

B&K 4231

18-Nov-10

14:28

14:58

Sunny

69

71

65

excavation in process and crane in operation

other construction site nearby

-

21.6

<5 m/s

B&K 2238

B&K 4231

24-Nov-10

16:03

16:33

Sunny

70

73

65

excavation in process and crane in operation

other construction site nearby; cargo transport

-

20.9

<5 m/s

B&K 2238

B&K 4231

30-Nov-10

14:51

15:21

Sunny

70

71

68

excavation and concreting in process and crane in operation

other construction site nearby; cargo transport

-

21.7

<5 m/s

B&K 2238

B&K 4231

Min.

69

Max.

72

+ - Façade measurement