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How loud is Too loud ? (2008/01)

  
  
At todays meeting at Loomies when SAM, motorcyclist, local residents, police and the press meet in open forum to discuss a recent article in the local press about the effects that motorcyclists using the A32 are having on the local residents - I was handed a list of just "how loud is loud" !  I will leave you to decide the accuracy of the article and as to whether it is biased in any way!
The article mentions that some of the bikes are up to 120 dB !!!
The loudness of sounds is measured in decibels (dB).
How load is too loud ? 
10 dB              Normal Breathing
20 dB              Rustling leaves, mosquito
30 dB              Whisper
40 dB              Stream, refrigerator humming
50-60 dB         Quit Office
50-65 dB         Normal Conversation                      
60-65 dB         Laughter
70 dB              Vacuum cleaner, hair dryer
75 dB              Dishwasher
78 dB              Washing Machine
80 dB              Garbage disposal, city traffic noise
Prolonged exposure to any noise above 90dB can cause gradual hearing loss
84 dB              Diesel truck
70-90 dB         Recreational vehicles
88 dB              Subway, motorcycle
100 dB            Train, garbage truck
97 dB              Newspaper printing press
98 dB              Farm tractor
Regular exposure of more that 1 minute risks permanent hearing loss
103 dB            Jet flying over at 100 feet
105 dB            Snowmobile
110 dB            Jackhammer, power saw, symphony orchestra
120 dB            Thunderclap, discotheque/boom box
110-125 dB      Stereo
110-140 dB      Rock Concerts
130 dB            Jet taking off, shotgun firing

 

 

(Source – www.tlc-direct.co.uk/technical/sounds/decibles.htm)

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