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[Interactions between solvents and noise: state of the art].

There are several environmental and occupational scenes where a co-exposure of noise and solvents occurs, therefore between a neurotoxic and a ototoxic agent. Epidemiological and experimental studies with simultaneous exposure to noise and solvents like toluene, styrene and carbon disulfide have been analysed. These studies investigate possible ototoxic effects through audiometry, auditory brainstem response, potential recall and reflex decay test. The current available data show that with high exposure levels, that are responsible for tissue damage by themselves, the interaction between noise and solvents could occur. The present knowledge can not permit a conclusion for low exposure levels.