02087nab a2200277 i 4500 BR-BrBNA 20260512152212.0 260512b2020 bl.qr|pooa||| 00| 0 eng | BR-BrBNA eng T01 Sobrinho, Nelson Moura Brasil do Amaral Andrade, André Fernão Martins de Lima, Erica Souto Abreu Zonta, Everaldo Magalhães, Márcio Osvaldo Lima Metals Phytoextraction by Cordia africana from Soils Contaminated with Oil Drilling Waste Publicação on-line; 27 ref.; 4 tables; 1 illus.; Summary (En) Abstract Oil exploration and production generate large quantities of waste, which may contain contaminants such as barium and lead. Therefore, more studies aimed at decreasing the levels of heavy metals in contaminated sites, using methods such as phytoremediation, are needed. In a preliminary assay, samples of soil contaminated with oil drilling waste were incubated with different concentrations (2 or 6 mmol L-1) of ethylenediaminetetraacetic acid (EDTA). Subsequently, an experiment was conducted in a greenhouse to evaluate the phytoremediation potential of the tree Cordia africana. EDTA induced mobilization and translocation of lead, manganese, and iron into the C. africana leaves but had no effect on barium. The quantity of heavy metal contaminants accumulated in the plant vegetative parts showed that C. africana cannot be used as a phytoextractor for the tested metals; however, it can be used as a phytostabilizer. Keywords: contamination, phytoremediation, heavy metals, EDTA. CONTAMINAÇÃO METAL PESADO SOLO 2929 347956 Rio de Janeiro-RJ Instituto de Florestas - UFRRJ 1994 2025-0455 Floresta e Ambiente (Brazil) 1415-0980 / ISSN 2179-8087 0nline v. 27(1) p. 1-8; (2020) BR2026001229 https://www.scielo.br/j/floram/a/fDDbj6R5qTsjcT3YPttNzXw/?format=pdf&lang=en ANA 341779 341779