GENNARI, R. F.GARCIA, I.MEDINA, N. H.Marcilei Aparecida Guazzelli2022-01-122022-01-122013-01-05GENNARI, R. F.; GARCIA, I.; MEDINA, N. H.; GUAZZELLI, M. A. Sequential chemical extraction for a phosphogypsum environmental impact evaluation. AIP Conference Proceedings, v. 1529, p. 52-55, Jan. 2013.1551-7616https://repositorio.fei.edu.br/handle/FEI/4074Phosphogypsum (PG) is gypsum generated during phosphoric acid production. PG is stocked in large stacks or accumulated in lakes; it contains heavy metals and naturally occurring radioactive elements. The metal contamination may affect the functionality, sustainability and biodiversity of ecosystems. In this work, PG samples were analyzed by Plasma Spectrometry. Total metal content and in the extractable fraction of chemical elements were determined. For K, Ni, Zn, Cr, Cd, Ba, Pb and U, the results obtained are lower than those obtained in a Idaho plant are including and also lower than those found in the soil, indicating this PG sample analyzed probably will not cause any additional metal neither natural radiation contamination. © 2013 AIP Publishing LLC.Acesso RestritoArtigo de evento10.1063/1.4804081BCRPhosphogypsumPlasma Spectrometry AnalysisSample DigestionSequential Extraction