[Biochemical liver studies of workers in ethylenediamine production]

Studies are performed on 44 workers, engaged in the production of ethylenediamine. The principle chemical noxae are: ammonia, ethylenediamine, dichloroethane, analogues of ethylenediamine, vinylchloride, sodium hydrate etc. The average concentrations of these compounds surpass the admissible norms for the air of the working environment. The biochemical studies certify for the presence of deviations in the enzymes, detoxication and lipidic liver functions. The established changes are observed in workers with length of service in the production more than 9 years. When juxtaposing the results the following risk groups are outlined: repair-maintenance staff and technical personnel.