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Ototoxic effects are also seen with quinine, pesticides, solvents, asphyxiants, and heavy metals such as mercury and lead. [5] [20] [41] [42] When combining multiple ototoxicants, the risk of hearing loss becomes greater. [43] [44] [45] As these exposures are common, this hearing impairment can affect workers in many occupations and industries.
A toxic heavy metal is a common but misleading term for a metal-like element noted for its potential toxicity. [4] Not all heavy metals are toxic and some toxic metals are not heavy. [ 5 ] Elements often discussed as toxic include cadmium , mercury and lead , [ 6 ] all of which appear in the World Health Organization 's list of 10 chemicals of ...
The American Tinnitus Association estimates there are roughly 200 health disorders that can generate tinnitus symptoms. Not exactly a small number. Not exactly a small number. Photo: Getty
Many metals, particularly heavy metals are toxic, but some are essential, and some, such as bismuth, have a low toxicity. Metals in an oxidation state abnormal to the body may also become toxic: chromium(III) is an essential trace element, but chromium(VI) is a carcinogen. Only soluble metal-containing compounds are toxic. Soluble metals are ...
That suggests patients with tinnitus could have damaged auditory nerves that no longer send signals to their brains, potentially resulting in brain activity that causes patients to hear sounds of ...
Exposure to organic solvents, heavy metals, and asphyxiants such as carbon monoxide can all cause hearing loss. [20] [21] These chemicals can be inhaled, ingested, or absorbed through the skin. Damage can occur to either the inner ear or the auditory nerve. Certain medications may also have the potential to cause hearing loss. [22]
Lead exposure can cause high blood pressure and brain, ... For 23 of the bars, eating just an ounce a day would exceed acceptable limits for at least one of those heavy metals.
The ear can be exposed to short periods of sound in excess of 120 dB without permanent harm — albeit with discomfort and possibly pain — but long term exposure to sound levels over 85 dB(A) can cause permanent hearing loss. [31] There are two basic types of NIHL: NIHL caused by acoustic trauma; NIHL that gradually develops.
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