Seasonal study of concentration of heavy metals in waters from lower São Francisco River basin, Brazil.

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dc.contributorA. M. SOUZA, UNIVASF; ALESSANDRA MONTEIRO SALVIANO, CPATSA; J. F. B. MELO, UNIVASF; W. P. FELIX, UNIVASF; C. S. BELÉM, UNIVASF; P. N. RAMOS, FACAPE.
dc.creatorSOUZA, A. M.
dc.creatorMENDES, A. M. S.
dc.creatorMELO, J. F. B.
dc.creatorFELIX, W. P.
dc.creatorBELÉM, C. S.
dc.creatorRAMOS, P. N.
dc.date2016-12-02T11:11:11Z
dc.date2016-12-02T11:11:11Z
dc.date2016-12-02
dc.date2016
dc.date2017-02-13T11:11:11Z
dc.date.accessioned2026-07-07T05:46:39Z
dc.descriptionIn this study we determined the concentration of metals (Cd, Cr, Cu, Fe, Mn, Ni, Pb and Zn) in the water lower São Francisco River basin, to evaluate the influence of urbanization and industrialization on environmental changes in the water resource. All samples were analyzed using the IUPAC adapted method and processed in an atomic absorption spectrophotometer. The sampling stations located near the industrial areas were influenced by industrialization because they presented higher concentrations of Cd, Cr, Ni and Cu. The other sampled locations showed changes with regard the trace elements probably originating in the soil, like Fe, Zn and Pb. There was a gradual increase in the concentrations of metals, in general, in the period of highest rainfall of the hydrographic network. Overall, except for Zn and Mn, the trace elements exceeded the maximum allowed value established by national legislation (CONAMA). Lower São Francisco River basin has suffered interference from urbanization and industrialization, so awareness programs should be developed so as to control and lessen future problems.
dc.identifierBrazilian Journal of Biology, v. 76, n. 4, p. 967-974, 2016.
dc.identifier1678-4375
dc.identifierhttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1057842
dc.identifier10.1590/1519-6984.05215
dc.identifier.urihttp://hdl.handle.net/123456789/499696
dc.languagepor
dc.rightsopenAccess
dc.subjectElementos traços
dc.subjectRio São Francisco
dc.subjectUrbanização
dc.subjectSolo
dc.subjectMetal pesado
dc.subjectÁgua
dc.subjectBacia Hidrográfica
dc.subjectIndustrialização
dc.subjectTrace elements
dc.subjectUrbanization
dc.titleSeasonal study of concentration of heavy metals in waters from lower São Francisco River basin, Brazil.
dc.typeArtigo de periódico

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