Trace Elements in Hair, as Related to Exposure in Metropolitan New York

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Abstract
Previous studies have revealed that trace element concentrations in hair can reflect exposure in cases of frank poisoning and deficiency. This study reports significant correlations within a single metropolitan area between trace-element content of hair and exposure (as measured by analyses for the corresponding elements in dustfall or housedust) for Ba, Cr, Pb, Hg, Ni, Sn, and V. Age, sex, hair color, and smoking habits were factors included in the statistical evaluation. Several metals increase and decrease together in the hair specimens, in agreement with trends reported for other human tissues.

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