Title:	Potential mobility and toxicity risk of metal pollutants in soils from a tropical area affected by industrial wastes.
Authors:	SOARES, R. SANTOS, M. C. B. MADDOCK, J. E. L. MACHADO, W. BERTOLINO, L. C. CAMPOS, D. V. B. de FREIRE, A. S. SANTELLI, R. E.
Affiliation:	RICARDO SOARES, INEA/UFF; MARIA CARLA BARRETO SANTOS, UFF; JOHN EDMUND LEWIS MADDOCK, UFF; WILSON MACHADO, UFF; LUIZ CARLOS BERTOLINO, CETEM; DAVID VILAS BOAS DE CAMPOS, CNPS; ALINE SOARES FREIRE, UFRJ; RICARDO ERTHAL SANTELLI, UFRJ.
Date Issued:	2020
Citation:	Revista Internacional de Contaminación Ambiental, v. 36, n. 4, p. 857-864, 2020.
Description:	The potential mobility of Cd, Cr, Cu, Ni, Pb and Zn in soils severely impacted by inadequate storage of industrial wastes in Rio de Janeiro State (Brazil) was evaluated by applying the Toxicity Characteristic Leaching Procedure (TCLP). This procedure allowed the estimation of toxicity risks for Cd, Cr and Pb. In a contamination hotspot within the study area, the following order of metal concentrations was observed: Pb > Zn > Cu > Ni > Cd > Cr, with significantly higher values than observed for a control site. Decades of soil exposure to wastes implied TCLP results for Pb above 300 mg/L in this hotspot, which exceed the TCLP regulatory threshold in two orders of magnitude, while Cd (up to 0.8 mg/L) and Cr (up to 0.3 mg/L) results were below the respective TCLP thresholds. Surface soil profile analysis (0-30 cm depth) indicates that Pb vertical migration occurs in the hotspot. TCLP concentrations of Pb were up to four orders of magnitude higher than the groundwater quality threshold preconized by Brazilian regulations for this metal (0.01 mg/L), suggesting that downward dispersion of large loadings of anthropogenic Pb is a major concern.
Thesagro:	Poluição do Solo Resíduo Industrial Metal Contaminação
NAL Thesaurus:	Soil pollution Industrial wastes
DOI:	http://dx.doi.org/10.20937/RICA.53659
Type of Material:	Artigo de periódico
Access:	openAccess
Appears in Collections:	Artigo em periódico indexado (CNPS)