Abstract
The research presents element composition of residents hair in the Orenburg region (n = 1 748) aged 8 to 65 years by methods ICP-AS and ICP-MS. Own results on the content of chemical elements in hair compared with centile intervals ( 25-75) obtained during population studies in different regions of Russia . There was a reduction of 25-75 centiles values for selenium, cobalt, chromium from 2 to 5 times in comparison with the average Russian values. It is not found a distinct effect the region of residence centile on values of toxic elements - cadmium, lead and tin. A lot of the examined observables excess magnesium, silicon and lithium. The obtained results are recommended for evaluation of the elemental composition of hair residents Orenburg region.
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