Noise - Noise Fundamentals Noise Fundamentals HOW DO WE...

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Unformatted text preview: Noise Fundamentals Noise Fundamentals HOW DO WE HEAR? HOW DO WE HEAR? SOUND RECEPTORS SOUND RECEPTORS DAMAGED HAIR CELLS DAMAGED HAIR CELLS High Sound Levels (Noise) can be Detrimental to Hearing, especially when exposure is for an extended period This is a fact and it is widely known and almost common knowledge, and yet, little is done to protect workers from the harmful effects of noise Noise Induced Hearing Loss Noise Induced Hearing Loss Exposure to noise causes a loss of sensitivity to high frequency (high pitch) sound. Continued exposure results in damage to mid frequency region as well. One can experience progressive high frequency hearing loss and not be aware of it until it becomes severe (doesnt affect loudness perception). HOW CAN IT HAPPEN? HOW CAN IT HAPPEN? One Time Exposure To Loud Sound One Time Exposure To Loud Sound OR OR Daily Exposures To Moderately Daily Exposures To Moderately Loud Sounds Loud Sounds Why is there so little done to protect workers from noise? Noise is possibly annoying, but it is not physically painful The effects of noise on hearing loss occur slowly, unnoticed from day to day exposure to equipment surrounding workers Fellow Workers on most construction projects also do not wear hearing protection...
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This note was uploaded on 08/27/2011 for the course BCN 4735 taught by Professor Staff during the Spring '08 term at University of Florida.

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Noise - Noise Fundamentals Noise Fundamentals HOW DO WE...

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