Title:	Estudo do comportamento do chumbo em latossolos brasileiros tratados com fosfatos: contribuições para a remediação de sítios contaminados.
Authors:	KEDE, M. L. F. M. MOREIRA, J. C. MAVROPOULOS, E. ROSSI, A. M. BERTOLINO, L. C. PEREZ, D. V. ROCHA, N. C. C. da
Affiliation:	Maria Luiza F. M. Kede, FIOCRUZ; Josino C. Moreira, FIOCRUZ; Elena Mavropoulos, Centro Brasileiro de Pesquisas Físicas; Alexandre M. Rossi, Centro Brasileiro de Pesquisas Físicas; Luiz Carlos Bertolino, UERJ; DANIEL VIDAL PEREZ, CNPS; Nilce Carbonel Campos da Rocha, UFRJ.
Date Issued:	2008
Citation:	Química Nova, São Paulo, v. 31, n. 3, p. 579-584, 2008.
Description:	Phosphates have been used for lead immobilization in soils but the influence of soil type is not fully understood. In this work, lead chemical behaviour in two Brazilian latosoils (LA and LV) was studied via treatment with phosphates. The Pb concentration in Toxicity Characteristic Leaching Procedure (TCLP) solutions was decreased in all treatments. After treatment with H3PO4 the Pb concentration in the LA remained within the regulatory limit established by EPA. The ecotoxicological results with Daphnia pulex showed that this treatment reduced the lead bioavailability. Sequential extraction analyses showed that the lead was transferred from the most available to the residual fraction. Relevant decrease of soluble lead was observed in all phosphate treatments.
Thesagro:	Chumbo Fosfato
Keywords:	Contaminação do solo Remediação
DOI:	https://doi.org/10.1590/S0100-40422008000300022
Type of Material:	Artigo de periódico
Access:	openAccess
Appears in Collections:	Artigo em periódico indexado (CNPS)