Environmental Health Engineering Theory and Practice/Noise

Noise is unwanted sound judged to be unpleasant, loud or disruptive to hearing. From a physics standpoint, noise is indistinguishable from sound, as both are vibrations through a medium, such as air or water. The difference arises when the brain receives and perceives a sound.

Useful Off-site Resources

 * United States Centers for Disease Control: National Institute of Occupational Safety and Health (NIOSH): Noise and Hearing Loss Prevention