An ototoxicant is a type of chemical that damages portions of the human ear upon exposure, specifically the nerve fibers that are responsible for hearing and balance. Because of their damaging effects on nerve tissues, they are also a variety of neurotoxin.
What is the OSHA regulation for sound level exposure?
OSHA sets legal limits on noise exposure in the workplace. These limits are based on a worker’s time weighted average over an 8 hour day. With noise, OSHA’s permissible exposure limit (PEL) is 90 dBA for all workers for an 8 hour day.
Is lead an Ototoxin?
Lead and mercury are metal compounds that are known to be neurotoxic, and therefore ototoxic.
Can toluene cause hearing loss?
The authors conclude that exposure to toluene and mixed solvents increases the risk of noise induced hearing loss. The risk is greater for workers exposed to toluene plus noise. The apparent interaction between toluene and noise suggests that this type of hearing loss involves the central auditory pathway.
Is presbycusis preventable?
Avoiding constant or continuous exposure to loud noises can help protect your hearing and prevent gradual hearing loss. It is not a reversible condition so prevention is important.
At what age does presbycusis begin?
Age-related hearing loss (also known as presbycusis) is a decrease in hearing ability that happens with age. In most cases, the hearing loss affects both ears. It can begin as early as a person’s thirties or forties and worsens gradually over time.
Is manganese ototoxic?
In welding, manganese, a material often present in the fumes that welding creates, is ototoxic. That means if it is inhaled, manganese can harm a welder’s ability to hear clearly.
Can acetaminophen cause tinnitus?
The risk of hearing loss increased with longer duration of analgesic use for both NSAIDs and acetaminophen. The ototoxic effects of high dose salicylates, reversible hearing loss and tinnitus, are well documented.
What is solvent induced hearing loss?
Animal models have demonstrated that solvents may induce auditory damage, especially to the outer hair cells. Research on workers exposed to solvents has suggested that these chemicals may also induce auditory damage through effects on the central auditory pathways.
