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Noise and Vibration

Noise and Vibration. How the Ear Works. Causes of Hearing Loss. Hair cells stop sending signals to the brain Chronic exposure One-time exposure. Noise Induced Hearing Loss. Hearing loss from exposure to sound Time Sound intensity. Sound. Measured in decibels (dB)

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Noise and Vibration

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  1. Noise and Vibration

  2. How the Ear Works

  3. Causes of Hearing Loss • Hair cells stop sending signals to the brain • Chronic exposure • One-time exposure

  4. Noise Induced Hearing Loss • Hearing loss from exposure to sound • Time • Sound intensity

  5. Sound • Measured in decibels (dB) • Sounds over 85 decibels can cause hearing loss • Equipment with noise levels over 85 dB • Farm tractors • Skid steers • Chain saws • Grain dryers • Lawn mowers

  6. Intensity and Time • 85 decibels for eight hours • For each 5 dB increase in intensity, the exposure limit is cut in half • 90 dB – 4 hours • 95 dB – 2 hours • 110 dB – 15 minutes

  7. Protect Your Hearing • Eliminate the source of the noise (or turn it off) • Stay away from the noise source • Use personal protective equipment when you have to be near the noise source

  8. Help your hearing • Replace old or damaged mufflers

  9. Vibration • Equipment vibration passes to the operator • Can cause health problems like back aches, finger numbness and more

  10. Controlling Vibration • Keep machines tuned and running well • Replace old and worn out seats • Limit the amount of time of exposure to excessive vibration

  11. Summary • Noise and vibration are common hazards on farms • Too much noise can cause hearing loss • Excessive vibration can cause back pain and other health problems

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