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<blockquote data-quote="endofdays89" data-source="post: 5389561" data-attributes="member: 594854">Decibel (Loudness) Comparison ChartHere are some interesting numbers, collected from a variety of sources, that help one to understand the volume levels of various sources and how they can affect our hearing.Environmental NoiseWeakest sound heard&nbsp; &nbsp;&nbsp; 0dBWhisper Quiet Library&nbsp; &nbsp;&nbsp; 30dBNormal conversation (3-5&#039;)&nbsp; &nbsp;&nbsp; 60-70dBTelephone dial tone&nbsp; &nbsp;&nbsp; 80dBCity Traffic (inside car)&nbsp; &nbsp;&nbsp; 85dBTrain whistle at 500&#039;, Truck Traffic&nbsp; &nbsp;&nbsp; 90dBSubway train at 200&#039;&nbsp; &nbsp;&nbsp; 95dBLevel at which sustained exposure may result in hearing loss&nbsp; &nbsp;&nbsp; 90 - 95dBPower mower at 3&#039;&nbsp; &nbsp;&nbsp; 107dBSnowmobile, Motorcycle&nbsp; &nbsp;&nbsp; 100dBPower saw at 3&#039;&nbsp; &nbsp;&nbsp; 110dBSandblasting, Loud Rock Concert&nbsp; &nbsp;&nbsp; 115dBPain begins&nbsp; &nbsp;&nbsp; 125dBPneumatic riveter at 4&#039;&nbsp; &nbsp;&nbsp; 125dBEven short term exposure can cause permanent damage - Loudest recommended exposure WITH hearing protection&nbsp; &nbsp;&nbsp; 140dBJet engine at 100&#039;, Gun Blast&nbsp; &nbsp;&nbsp; 140dBDeath of hearing tissue&nbsp; &nbsp;&nbsp; 180dBLoudest sound possible&nbsp; &nbsp;&nbsp; 194dBOSHA Daily Permissible Noise Level ExposureHours per day&nbsp; &nbsp;&nbsp; Sound level8&nbsp; &nbsp;&nbsp; 90dB6&nbsp; &nbsp;&nbsp; 92dB4&nbsp; &nbsp;&nbsp; 95dB3&nbsp; &nbsp;&nbsp; 97dB2&nbsp; &nbsp;&nbsp; 100dB1.5&nbsp; &nbsp;&nbsp; 102dB1&nbsp; &nbsp;&nbsp; 105dB.5&nbsp; &nbsp;&nbsp; 110dB.25 or less&nbsp; &nbsp;&nbsp; 115dB</blockquote>

[QUOTE="endofdays89, post: 5389561, member: 594854"] Decibel (Loudness) Comparison Chart Here are some interesting numbers, collected from a variety of sources, that help one to understand the volume levels of various sources and how they can affect our hearing. Environmental Noise Weakest sound heard 0dB Whisper Quiet Library 30dB Normal conversation (3-5') 60-70dB Telephone dial tone 80dB City Traffic (inside car) 85dB Train whistle at 500', Truck Traffic 90dB Subway train at 200' 95dB Level at which sustained exposure may result in hearing loss 90 - 95dB Power mower at 3' 107dB Snowmobile, Motorcycle 100dB Power saw at 3' 110dB Sandblasting, Loud Rock Concert 115dB Pain begins 125dB Pneumatic riveter at 4' 125dB Even short term exposure can cause permanent damage - Loudest recommended exposure WITH hearing protection 140dB Jet engine at 100', Gun Blast 140dB Death of hearing tissue 180dB Loudest sound possible 194dB OSHA Daily Permissible Noise Level Exposure Hours per day Sound level 8 90dB 6 92dB 4 95dB 3 97dB 2 100dB 1.5 102dB 1 105dB .5 110dB .25 or less 115dB [/QUOTE]

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