Guacira de Figueiredo Eufrasio Pauly, Ana Carolina Feitosa Cruz, Tailisi Hoppe Trevizani, Bianca Sung Mi Kim, Fernando Cesar Perina, Flávia Yoshie Yamamoto, Rubens Cesar Lopes Figueira, Denis Moledo de Souza Abessa
The rupture of the Fundão dam, in Brazil, released tons of mining tailings into the Doce River basin (DRB). This investigation aimed to determine the bioaccumulation of metals in soft tissues of the bivalve Corbicula fluminea exposed to sediments collected in the DRB in four periods (just after, 1, 3, and 3.5 years after the dam rupture). In the exposure bioassays, the concentrations of Al, As, Cd, Cr, Cu, Fe, Mn, Ni, Pb, and Zn in sediments and bivalve soft tissues were quantified. The concentration of some elements (As, Cd, Mn, Al) in sediments exceeded the federal limits or regional backgrounds at some sampling sites, but their concentrations tended to decrease along time...
April 7, 2023: Integrated Environmental Assessment and Management