| HUSHCORE™
Acoustical Products & Systems Technical Discussion |
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| Industrial |
| Employees exposed to excessive in-plant industrial noise may be at risk to suffer a variety of physiological and psychological consequences. Other intangible effects have also been hypothesized to be caused by stress associated with noise exposure. Prevention of hearing loss is the focus of hearing | conservation programs. It is the only physiological effect that has an undisputed, well documented association to noise exposure in humans. The table below summarizes some of the possible effects that are linked to noise exposure. Total employee exposure includes recreational sources. |
| Effects Linked To Noise Exposure |
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| The basic mechanism of hearing involves converting sound waves hitting the ear drum to structure-borne vibrations transmitting through bones in the middle ear. From there, vibrations are changed into nerve impulses in the cochlea of the inner ear. The fluid filled cochlea contains 40,000 tiny hair cells like the one shown at right (magnified) that initiate the nerve impulse which is transmitted to the brain. With repeated exposure to excessive noise, these hair cells lose some of their resilience and may even break off resulting in sensorineural or noise induced hearing loss. Hearing loss is permanent because once damaged, the hair cells can never be repaired or replaced. |
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