Hearing damage can begin after approximately 8 hours of exposure to sound levels at or above what dB?

Understand the Problem

The question is asking at what decibel level does hearing damage start occurring after 8 hours of exposure. This is fact recall question about health and safety.

Answer

85 dBA

Hearing damage can begin after approximately 8 hours of exposure to sound levels at or above 85 dBA.

Answer for screen readers

Hearing damage can begin after approximately 8 hours of exposure to sound levels at or above 85 dBA.

More Information

The safe listening time is cut in half for every 3-dB rise in noise levels over 85 dBA.

Tips

It's a common mistake to think about only the volume of sound, the length of exposure also affects hearing damage.

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