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Bioavailability of Fe and heavy metals in sediments from the Ria of Huelva (South-Western Spain)

dc.contributor.authorLópez González, Nieves 
dc.contributor.authorBorrego Flores, José 
dc.contributor.authorCarro Flores, Berta 
dc.contributor.authorLozano Soria, O.
dc.date.accessioned2014-09-19T08:55:23Z
dc.date.available2014-09-19T08:55:23Z
dc.date.issued2004
dc.identifier.urihttp://hdl.handle.net/10272/8823
dc.description.abstractBioavailability of Fe, Cu, Zn, As, Cd and Pb has been studied in 17 samples of surface sediments of the Ria of Huelva. In all cases, total concentration of these elements is high, especially of Zn (1660,6 ppm), followed by Cu (1499,9 ppm), Pb (919,2 ppm), As (432,5 ppm) and Cd (2,7 ppm). The highest concentrations associated with bioavailable fractions are shown by Zn (86% of total concentration) followed by Cd (76,5%), Fe (59%), Cu (45%), As (32%) and Pb (31%). The main source of metal input are the Tinto and Odiel rivers, which acidic water (pH < 4) discharge coming from acid mine drainage (AMD) to the estuary. Acidic water inputs and mixing processes with sea water are the main control in the spatial distribution of metals and their association with the different target fractionsen_US
dc.language.isospaen_US
dc.publisherSociedad Geológica de Españaen_US
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subject.otherBioavailabilityen_US
dc.subject.otherMetalsen_US
dc.subject.otherSedimentsen_US
dc.subject.otherAcid mine drainageen_US
dc.subject.otherOdiel and Tinto river estuaryen_US
dc.titleBiodisponibilidad de Fe y metales pesados en los sedimentos de la Ría de Huelva (SO de España)en_US
dc.titleBioavailability of Fe and heavy metals in sediments from the Ria of Huelva (South-Western Spain)eng
dc.typeinfo:eu-repo/semantics/articleen_US
dc.rights.accessRightsinfo:eu-repo/semantics/openAccessen_US


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