Abstract
Sediments are constituted of mineral particles (sand, silt and clay) and organic matter transported or deposited in the water bodies. Anthropogenic activities as industrialization and urbanization are responsible for the input of high amounts of toxic metals to the surface water of a River Basin and can negatively impact sediment quality. The sediments can storage hazardous substances or act as a secondary pollution source by transfering contaminants to the system. The objective of this study was to evaluate the concentration of toxic elements in sediments of Uberabinha River (Uberlândia, MG) which may represent a risk for the environment and human health. The Chemical analysis of sediments at different localities indicated elevated concentration of some metals, e.g., Co, Cr, Cu, Ni, Pb and Zn compared to guiding values for sediment quality established by the National Environment Council (CONAMA, Brazil). and could be related to the direct discharge of untreated urban (industrial and domestic) effluents into the water stream
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