Data/hora: 21/09/2024 07:28:04

Biblioteca(s): 	Embrapa Mandioca e Fruticultura.	
Data corrente: 	06/01/2015	
Data da última atualização: 	26/05/2023	
Autoria: 	ALFARO, M. R.; MONTERO, A.; UGARTE, O. M.; NASCIMENTO, C. W. A. do; ACCIOLY, A. M. de A.; BIONDI, C. M.; SILVA, Y. J. A. B. da.	
Afiliação: 	MIRELYS RODRÍGUEZ ALFARO, Instituto de Suelos; ALFREDO MONTERO, CEADEN; OLEGARIO MUÑIZ UGARTE; CLÍSTENES WILLIAMS ARAÚJO DO NASCIMENTO; ADRIANA MARIA DE AGUIAR ACCIOLY, CNPMF; CAROLINE MIRANDA BIONDI, UFRPE; YGOR JACQUES AGRA BEZERRA DA SILVA, UFRPE.	
Título: 	Background concentrations and reference values for heavy metals in soils of Cuba.	
Ano de publicação: 	2015	
Fonte/Imprenta: 	Environmental Monitoring and Assessment, v.187, p. 4198, 2015.	
DOI: 	10.1007/s10661-014-4198-3	
Idioma: 	Inglês	
Conteúdo: 	The potential threat of heavy metals to human health has led to many studies on permissible levels of these elements in soils. The objective of this study was to establish quality reference values (QRVs) for Cd, Pb, Zn, Cu, Ni, Cr, Fe, Mn, As, Hg, V, Ba, Sb, Ag, Co, and Mo in soils of Cuba. Geochemical associations between trace elements and Fe were also studied, aiming to provide an index for establishing background concentrations of metals in soils. Surface samples of 33 soil profiles from areas of native forest or minimal anthropic influence were collected. Samples were digested (USEPA method 3051A), and the metals were determined by ICP-OES. The natural concentrations of metals in soils of Cuba followed the order Fe>Mn>Ni>Cr>Ba>V>Zn>Cu>Pb>Co>As>Sb>Ag>Cd>Mo>Hg. The QRVs found for Cuban soils were as follows (mg kg?1): Ag (1), Ba (111), Cd (0.6), Co (25), Cr (153), Cu (83), Fe (54,055), Mn (1947), Ni (170), Pb (50), Sb (6), V (137), Zn (86), Mo (0.1), As (19), and Hg (0.1). The average natural levels of heavy metals are above the global average, especially for Ni and Cr. The chemical fractionation of soil samples presenting anomalous concentrations of metals showed that Cu, Ni, Cr, Sb, and As have low bioavailability. This suggests that the risk of contamination of agricultural products via plant uptake is low. However, the final decision on the establishment of soil QRVs in Cuba depends on political, economic, and social issues and in-depth risk analyses considering all routes of exposure to these elements.	
Thesagro: 	Metal pesado; Solo.	
Thesaurus Nal: 	Heavy metals; Soil.	
Categoria do assunto: 	--	
Registro original: 	Embrapa Mandioca e Fruticultura (CNPMF)	
Exemplares: 	CNPMF - (30354-1) - UPC - AP - DD - Publicação digital -  -  - DIS