Important Links for Sound and Noise
OSHA United States Department of Labor http://www.osha.gov/SLTC/noisehearingconservation/
OSHA United States Department of labor eTool Technical Manual http://www.osha.gov/dts/osta/otm/noise/
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Sound and Noise Exposure Facts
Any exposure to noise above 85dB can damage the human hearing; as a rule of thumb, the ambient sound is too loud if you can not carry on a conversation without raising your voice. Occupational noise |
Understanding Sound and Noise Levels
Environmental
Noise
Weakest sound heard
0dB
Whisper Quiet Library at 6'
30dB
Normal conversation at 3'
60-65dB |