Kaíque Mesquita Cardoso, Cácio Luiz Boechat, Clístenes Williams Araújo do Nascimento, Maria Eugenia Ortiz Escobar, Douglas Gonçalves da Silva, Simone Aparecida da Silva Lins, Raiane Lima Oliveira, Pâmalla Graziely Carvalho Morais
The evaluation of the concentration of a potentially toxic element (PTE) in soils under native vegetation is the base study to obtain the quality reference values (QRVs), and the watershed is the strategic planning unit for decision making. The objective of this study was to determine the natural concentrations of As, Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb and Zn and to establish QRVs for the Verruga river basin. Soils with no or minimal anthropic intervention from the surface layer (0.0-0.2 m) were collected and processed, and PTEs were extracted according to the USEPA 3051A method and determined by ICP‒OES...
July 17, 2023: Chemosphere