Noise Monitoring Results
(0700-1900 hrs on Normal Weekdays)
  Location NM7 - Open Area near Naval Base Barrack
Date Time Weather Unit: dB (A) (30-min)
Measured Noise Level
L eq L10 L 90
 (Restricted Hours - 07:00 to 23:00 holidays & 19:00 to 23:00 on all other days )
Location NM7 - Customs' Marine Base (Block H of Government Dockyard) Rooftop
Date Time Weather dB (A) (5-min)
L eq L10 L 90 Average Leq
2-Apr-13 19:05 Cloudy 65.3 67.5 61.2 65.2
19:10 65.6 68.0 61.2
19:15 64.8 67.8 61.3
8-Apr-13 19:10 Cloudy 68.5 71.1 63.2 67.7
19:15 67.4 69.7 62.6
19:20 66.9 70.1 62.7
18-Apr-13 20:00 Fine 64.9 66.5 61.5 65.0
20:05 65.5 67.0 61.0
20:10 64.7 67.0 61.2
24-Apr-13 20:30 Cloudy 64.7 67.0 61.1 64.8
20:35 65.2 67.8 61.7
20:40 64.5 67.0 61.5
30-Apr-13 19:10 Cloudy 65.7 68.4 61.2 65.3
19:15 64.8 67.9 61.0
19:20 65.3 68.0 61.2
 (Restricted Hours -  23:00 to 07:00 on all days )
Location NM7 - Customs' Marine Base (Block H of Government Dockyard) Rooftop
Date Time Weather dB (A) (5-min) Baseline Level Construction Noise Level
L eq L10 L 90 Average Leq L eq L eq
2-Apr-13 23:05 Cloudy 60.2 61.7 56.2 60.1 59.7 49.6
23:10 60.3 61.5 56.3
23:15 59.8 61.4 55.7
8-Apr-13 23:05 Cloudy 61.4 62.3 57.6 61.3 56.2
23:10 61.6 62.3 57.5
23:15 60.9 62.6 56.8
18-Apr-13 23:05 Fine 59.9 61.7 57.0 59.3 59.3 MeasuredBaseline
23:10 59.1 61.5 57.3
23:15 58.8 61.5 57.2
24-Apr-13 23:05 Cloudy 61.2 62.4 57.0 60.9 54.6
23:10 60.9 61.9 56.5
23:15 60.5 61.7 56.7
30-Apr-13 23:05 Cloudy 59.6 62.1 56.8 60.3 51.1
23:10 60.4 62.5 57.1
23:15 60.7 62.7 57.0