Indicator ability of biosubstances in monitoring the moderate occupational exposure to toxic metals.

In order to improve the monitoring system, watching influence of toxic metals on human health in industrial plants, indicator properties of different biosubstances were compared. Four types of samples (whole blood, plasma, urine, and hair) from 263 workers of the "Khimprom" chemical plant (Novocheboksarsk, Russia) were subjected to multielement analysis by ICP-AES/ICP-MS. 19-25 chemical elements, including main toxic metals (Cd, Hg, Pb, etc.

[Unidirectionality of elemental state disorders in workers contacting arsenic compounds and in oncologic patients].

The authors determined concentrations of 24 elements in hair of workers contacting arsenic high concentrations in workplace air, of individuals suffering from malignancies variable in localization, and of general population residing in places with environmentally high level of arsenic. Individuals with high hair content of arsenic and certain elemental dysbalance (sharp decrease of elements ratio Si/Hg, Zn/Hg, Se/Hg, P/Hg, Ni/Hg and Nb/Hg, if compared to control group) were assigned to high risk group for malignancies development.