Heavy metals at the Guadalquivir estuary

Heavy metals at the Guadalquivir estuary

 Temporal surveys at the Guadalquivir estuary were carried out between May and December 1998 to assess the behaviour of four heavy metals (Zn, Cd, Pb and Cu). These metals presented a non-conservative behaviour, with KD ranging between 102 and 104. Losses related to the dissolved phase have...

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Κύριοι συγγραφείς: García-Luque, E, Sáenz, I, Riba, I, Del-Valls, TA, Forja, JM, Gómez-Parra, A
Μορφή: Online
Γλώσσα:eng
Έκδοση: Iniversidad Autónoma de Baja California 2003
Διαθέσιμο Online:https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/170
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spelling oai:cienciasmarinas.com.mx:article-1702019-04-24T20:11:07Z Heavy metals at the Guadalquivir estuary Metales pesados en el estuario del Guadalquivir García-Luque, E Sáenz, I Riba, I Del-Valls, TA Forja, JM Gómez-Parra, A heavy metals Guadalquivir estuary metal speciation partitioning coefficient sediment metales pesados estuario del Guadalquivir especiación de metales coeficientes de partición sedimento  Temporal surveys at the Guadalquivir estuary were carried out between May and December 1998 to assess the behaviour of four heavy metals (Zn, Cd, Pb and Cu). These metals presented a non-conservative behaviour, with KD ranging between 102 and 104. Losses related to the dissolved phase have been quantified, as well as their metal speciation. The concentration of heavy metals associated with different geochemical fractions in sediments was also determined. Each metal showed a different distribution depending on whether its origin was associated (Zn and Cd) or not (Pb and Cu) to the toxic mud from Aznalcóllar. In general, heavy metal (Zn and Cd) enrichment was found in the estuary (due to the Aznalcóllar mining spill), determined in their concentrations in the most bioavailable fractions of the sediment. Se han realizado una serie de muestreos en el estuario del Guadalquivir entre mayo y diciembre de 1998 para caracterizar el comportamiento de ciertos metales pesados (Zn, Cd, Pb y Cu). Los cuatro presentaron un comportamiento no conservativo, con coeficientes de distribución (KD) comprendidos entre 102 y 104. Se han calculado las pérdidas en la fase disuelta y se ha realizado la especiación de los mismos. Se ha caracterizado la concentración de metales asociados con las distintas fracciones geoquímicas del sedimento, encontrándose distintas distribuciones para cada metal, dependiendo de su origen asociado al lodo tóxico de Aznalcóllar (Zn, Cd) o no (Pb y Cu). En general, se aprecia un enriquecimiento en metales pesados (Zn y Cd) en el estuario (debido al accidente de Aznalcóllar), determinado en sus concentraciones en las fracciones más biodisponibles del sedimento. Iniversidad Autónoma de Baja California 2003-03-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Artículo Arbitrado application/pdf https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/170 10.7773/cm.v29i4.170 Ciencias Marinas; Vol. 29 No. 4 (2003); 457-468 Ciencias Marinas; Vol. 29 Núm. 4 (2003); 457-468 2395-9053 0185-3880 eng https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/170/145
institution Ciencias Marinas
collection OJS
language eng
format Online
author García-Luque, E
Sáenz, I
Riba, I
Del-Valls, TA
Forja, JM
Gómez-Parra, A
spellingShingle García-Luque, E
Sáenz, I
Riba, I
Del-Valls, TA
Forja, JM
Gómez-Parra, A
Heavy metals at the Guadalquivir estuary
author_facet García-Luque, E
Sáenz, I
Riba, I
Del-Valls, TA
Forja, JM
Gómez-Parra, A
author_sort García-Luque, E
title Heavy metals at the Guadalquivir estuary
title_short Heavy metals at the Guadalquivir estuary
title_full Heavy metals at the Guadalquivir estuary
title_fullStr Heavy metals at the Guadalquivir estuary
title_full_unstemmed Heavy metals at the Guadalquivir estuary
title_sort heavy metals at the guadalquivir estuary
description  Temporal surveys at the Guadalquivir estuary were carried out between May and December 1998 to assess the behaviour of four heavy metals (Zn, Cd, Pb and Cu). These metals presented a non-conservative behaviour, with KD ranging between 102 and 104. Losses related to the dissolved phase have been quantified, as well as their metal speciation. The concentration of heavy metals associated with different geochemical fractions in sediments was also determined. Each metal showed a different distribution depending on whether its origin was associated (Zn and Cd) or not (Pb and Cu) to the toxic mud from Aznalcóllar. In general, heavy metal (Zn and Cd) enrichment was found in the estuary (due to the Aznalcóllar mining spill), determined in their concentrations in the most bioavailable fractions of the sediment.
publisher Iniversidad Autónoma de Baja California
publishDate 2003
url https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/170
_version_ 1715723938495987712

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