How loud is too loud

  • Published on
    30-Jul-2016

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DESCRIPTION

Noise levels are measured in decibels, or dB for short. The higher the decibel level, the louder the noise. Sounds that are louder than 85 dB can cause permanent hearing loss.

Transcript

How Loud isToo Loud?25% of all hearing loss cases can be attributed to noise-induced hearing loss, whether that is caused by a one-time occurrence, or by repeated exposure over an extended period of time.A normal conversationoccurs at 60 dB.If a sound reaches 85 dB or stronger,it can cause permanent hearing damage.If a sound reaches 120-190 dB, it cancause immediate hearing damage.85 - 90 dBMotorcycle or Subway train (25 feet away)110-140 dBRock concerts70-80 dBHousehold appliances such as hair dryer, vacuum cleaner, and washing machine

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