Trichloroethylene occupational exposure: elements for better prevention

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Abstract
One hundred and eighty-eight workers occupationally exposed to trichloroethylene (TRI) were studied by physical examination, exposure parameters (measure of atmospheric TRI and urinary trichloroacetic acid (CA) and evaluation of personal factors (age, alcoholic and tobacco consumption). A statistical comparison (χ 2 test) of the frequency of the symptoms observed in the high- and low-exposure populations with an analysis of non-professional factors allowed us to distinguish different classes of symptoms. Those more likely linked with TRI exposure are trigeminal and optic nerve impairment, asthenia, headache and dizziness. An interaction between TRI exposure and alcohol intake on the occurrence of clinical liver impairment and degreaser flush is suggested.

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