IMPACTO AMBIENTAL DA CONSTRUÇÃO DA UHE BELO MONTE SOBRE A QUALIDADE DA AGUA DO RIO XINGU

Abstract

DOI: 10.14684/intertech.13.2014.411-415

One of the major impacts of the construction of the hydroelectric plant of Belo Monte (Altamira - Pará state - Amazon region) will be on the water quality of the Xingu river. The research objective was to evaluate the changes that are already occurring in the river water Xingu. Was investigated the chemical changes in two distinct periods. In terms of medium, the pH presented a reduction to 10.23 %, the OD was from 5.48 mg/L and has increased to 7.46 mg/L represents an improvement in this particular parameter. The Cr, Pb and Zn showed an increase significant, which may represent a health risk. The metal levels found represent risks to the health of local populations including indigenous tribes who generally use water from the Xingu river, in nature, for your consumption. The reduction of the vegetal coverage and increased runoff may have been responsible for increasing the concentration of metals.

Index Terms - Heavy metals, dam, Altamira, Indian tribes.