Taranto area is among the highest environmental risk ones, giving the vast presence of plants in it. On this basis, we carried out a biological monitoring programme on Taranto resident population, not occupational exposed to heavy metals. Particularly, we investigated Arsenic (As), Chrome (Cr), Manganese (Mn), Mercury (Hg) and Lead (Pb) due to the ubiquitous characteristics of these metals, widely diffuse in nature, and from the potential carcinogenic effects. We measured iAs+MMA+DMA, Cr, Hg, Mg and Pb in 84 urinary samples of subjects living in Taranto area. We also administrated a questionnaire, in order to investigate the influence of occupational and non-occupational factors on urinary metals excretion. The mean values of urinary excretion of Pb and Cr were above the reference values observed by the Italian Association for Reference Values in the general population not occupational exposed to metals. In addiction, in order to Hg, Pb and Cr, a significant difference was observed in relation with gender and place of residence.
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