Influence of anthropogenic activity on the vertical distribution of Zn, Cd, Pb and Cu in interstitial water and coastal marine sediments (Cádiz bay, SW Spain)

Influence of anthropogenic activity on the vertical distribution of Zn, Cd, Pb and Cu in interstitial water and coastal marine sediments (Cádiz bay, SW Spain)

 The vertical profiles of Zn, Cd, Pb and Cu were determined for sediment and interstitial water from three stations in Cádiz Bay. The concentrations of the different metals measured in the surface sediments depend on the distance from the waste water discharge points existing in this zone a...

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Autores principales: Ponce, R, Forja, JM, Gómez-Parra, A
Formáid: Online
Teanga:eng
Foilsithe: Iniversidad Autónoma de Baja California 2000
Rochtain Ar Líne:https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/590
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spelling oai:cienciasmarinas.com.mx:article-5902019-05-06T21:28:26Z Influence of anthropogenic activity on the vertical distribution of Zn, Cd, Pb and Cu in interstitial water and coastal marine sediments (Cádiz bay, SW Spain) Influencia de la actividad antropogénica en la distribución vertical de Zn, Cd, Pb y Cu en agua intersticial y sedimentos marinos costeros (bahía de Cádiz, SW de España) Ponce, R Forja, JM Gómez-Parra, A heavy metals coastal sediments pore water contamination anodic stripping voltammetry metales pesados sedimentos costeros agua intersticial contaminación voltoamperometría de redisolución anódica  The vertical profiles of Zn, Cd, Pb and Cu were determined for sediment and interstitial water from three stations in Cádiz Bay. The concentrations of the different metals measured in the surface sediments depend on the distance from the waste water discharge points existing in this zone and on their nature (urban or industrial). The highest levels of Pb and Cd (70 and 0.31 µg g–1, respectively) were found near urban effluents, and the highest levels of Zn and Cu (230 and 106 µg g–1, respectively) near industries related to the construction of ships. The vertical profiles of Zn, Cd, Pb and Cu in both sediment and interstitial water show an important increase in concentrations in the surface layers and are relatively constant from 20 cm. The interstitial water concentrations are lower than the sediment concentrations, ranging from 13 to 57 µg L–1 for Zn, from 3 to 11 µg L–1 for Pb, from 9 to 320 µg L–1 for Cu and from 0.07 to 2.4 µg L–1 for Cd. The values obtained for the geoaccumulation index reported by Müller (1979) classify the study area as intermediate, between an uncontaminated and moderately contaminated ecosystem. The surface enrichment factor values calculated for the four metals from the different stations suggest a unique origin of metal contamination in this zone. Se han determinado los perfiles verticales de concentración de Zn, Cd, Pb y Cu en el sedimento y el agua intersticial de tres estaciones de la Bahía de Cádiz. Las concentraciones de los distintos metales encontradas en los sedimentos superficiales dependen de su distancia a los puntos de vertido de los efluentes residuales existentes en la zona y de la naturaleza de éstos (urbana o industrial). Así, los niveles más elevados de Pb y Cd (70 y 0.31 µg g–1, respectivamente) se han hallado en las inmediaciones de vertidos urbanos, y los de Zn y Cu (230 y 106 µg g–1, respectivamente) en las proximidades de industrias relacionadas con la construcción naval. Los perfiles verticales de Zn, Cd, Pb y Cu, tanto en sedimento como en agua intersticial, muestran un notable aumento de la concentración en las capas más superficiales y unas concentraciones relativamente constantes a partir de los 20 cm. Las concentraciones en el agua intersticial son sensiblemente menores que las medidas en el sedimento, variando entre 13 y 57 µg L–1 para el Zn, entre 3 y 11 µg L–1 para el Pb, entre 9 y 320 µg L–1 para el Cu y entre 0.07 y 2.4µgL–1 para elCd. Los valores obtenidos para el índice de geoacumulación propuesto por Müller (1979) permiten considerar a la zona estudiada en una situación intermedia entre un sistema no contaminado y de contaminación moderada. Los valores encontrados para el factor de enriquecimiento superficial (concentración en los 5 cm superficiales/niveles basales) para los cuatro metales en las distintas estaciones, sugieren un único origen de contaminación por metales en la zona. Iniversidad Autónoma de Baja California 2000-03-06 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/590 10.7773/cm.v26i3.590 Ciencias Marinas; Vol. 26 No. 3 (2000); 479-502 Ciencias Marinas; Vol. 26 Núm. 3 (2000); 479-502 2395-9053 0185-3880 eng https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/590/526
institution Ciencias Marinas
collection OJS
language eng
format Online
author Ponce, R
Forja, JM
Gómez-Parra, A
spellingShingle Ponce, R
Forja, JM
Gómez-Parra, A
Influence of anthropogenic activity on the vertical distribution of Zn, Cd, Pb and Cu in interstitial water and coastal marine sediments (Cádiz bay, SW Spain)
author_facet Ponce, R
Forja, JM
Gómez-Parra, A
author_sort Ponce, R
title Influence of anthropogenic activity on the vertical distribution of Zn, Cd, Pb and Cu in interstitial water and coastal marine sediments (Cádiz bay, SW Spain)
title_short Influence of anthropogenic activity on the vertical distribution of Zn, Cd, Pb and Cu in interstitial water and coastal marine sediments (Cádiz bay, SW Spain)
title_full Influence of anthropogenic activity on the vertical distribution of Zn, Cd, Pb and Cu in interstitial water and coastal marine sediments (Cádiz bay, SW Spain)
title_fullStr Influence of anthropogenic activity on the vertical distribution of Zn, Cd, Pb and Cu in interstitial water and coastal marine sediments (Cádiz bay, SW Spain)
title_full_unstemmed Influence of anthropogenic activity on the vertical distribution of Zn, Cd, Pb and Cu in interstitial water and coastal marine sediments (Cádiz bay, SW Spain)
title_sort influence of anthropogenic activity on the vertical distribution of zn, cd, pb and cu in interstitial water and coastal marine sediments (cádiz bay, sw spain)
description  The vertical profiles of Zn, Cd, Pb and Cu were determined for sediment and interstitial water from three stations in Cádiz Bay. The concentrations of the different metals measured in the surface sediments depend on the distance from the waste water discharge points existing in this zone and on their nature (urban or industrial). The highest levels of Pb and Cd (70 and 0.31 µg g–1, respectively) were found near urban effluents, and the highest levels of Zn and Cu (230 and 106 µg g–1, respectively) near industries related to the construction of ships. The vertical profiles of Zn, Cd, Pb and Cu in both sediment and interstitial water show an important increase in concentrations in the surface layers and are relatively constant from 20 cm. The interstitial water concentrations are lower than the sediment concentrations, ranging from 13 to 57 µg L–1 for Zn, from 3 to 11 µg L–1 for Pb, from 9 to 320 µg L–1 for Cu and from 0.07 to 2.4 µg L–1 for Cd. The values obtained for the geoaccumulation index reported by Müller (1979) classify the study area as intermediate, between an uncontaminated and moderately contaminated ecosystem. The surface enrichment factor values calculated for the four metals from the different stations suggest a unique origin of metal contamination in this zone.
publisher Iniversidad Autónoma de Baja California
publishDate 2000
url https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/590
_version_ 1715723986977947648

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