Two opposite cases of metal accumulation in ria sediments: Ferrol and Corme-Laxe (Galicia, NW Iberian Peninsula)

Two opposite cases of metal accumulation in ria sediments: Ferrol and Corme-Laxe (Galicia, NW Iberian Peninsula)

The accumulation of heavy metals (Cd, Cu, Pb and Zn) in surface sediments (<63 µm) of the Ferrol and Corme-Laxe rias was studied. These two rias have opposite characteristics from the point of view of both the morphology and the anthropogenic impact. Low metal concentrations were found in the...

ver descrição completa

Na minha lista:
Detalhes bibliográficos
Principais autores: Cobelo-García, A, Labandeira, A, Prego, R
Formato: Online
Idioma:eng
Publicado em: Iniversidad Autónoma de Baja California 2005
Acesso em linha:https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/31
Tags: Adicionar Tag
Sem tags, seja o primeiro a adicionar uma tag!
id oai:cienciasmarinas.com.mx:article-31
record_format ojs
spelling oai:cienciasmarinas.com.mx:article-312019-04-05T00:03:27Z Two opposite cases of metal accumulation in ria sediments: Ferrol and Corme-Laxe (Galicia, NW Iberian Peninsula) Dos casos opuestos en la acumulación de metales en el sedimento de una ría: Ferrol y Corme-Laxe (Galicia, NO Península Ibérica) Cobelo-García, A Labandeira, A Prego, R heavy metals contamination sediments background values Ferrol Corme-Laxe Galicia metales pesados contaminación sedimentos valores de fondo Ferrol Corme-Laxe Galicia The accumulation of heavy metals (Cd, Cu, Pb and Zn) in surface sediments (<63 µm) of the Ferrol and Corme-Laxe rias was studied. These two rias have opposite characteristics from the point of view of both the morphology and the anthropogenic impact. Low metal concentrations were found in the Corme-Laxe Ria, with the highest values observed in the Anllóns River estuary, probably due to a higher lithogenic composition of the sediments. Concentrations in the Corme-Laxe Ria (Cd, 0.10 ± 0.03 µg g–1; Cu, 5 ± 2 µg g–1; Pb, 12 ± 4 µg g–1; and Zn, 49 ± 17 µg g–1) can be used as a good reference for metal background values for sediments from the 18 Galician rias. Although these background values are lower than those previously reported for the Galician coast, they are similar to those found in other uncontaminated coastal and marine systems. The highest concentrations for Ferrol were generally found in the middle part of the ria, which receives the most important urban and industrial impact. The values obtained show evident metal contamination in the middle and inner parts of the Ferrol Ria, with enrichment factors of 4–10 for Cd, 5 for Cu, 2–3 for Pb and 4–5 for Zn. Se estudió la acumulación de metales pesados (Cd, Cu, Pb y Zn) en el sedimento (<63 µm) superficial en las rías de Ferrol y Corme-Laxe, las cuales poseen características contrapuestas tanto desde el punto de vista de su morfología como de su influencia urbana e industrial. La ría de Corme-Laxe presentó bajos niveles de metales en los sedimentos, siendo mayores en el estuario del Río Anllóns probablemente debido a un mayor grado litogénico de los sedimentos. Las concentraciones obtenidas en la ría de Laxe (0.10 ± 0.03 µg g–1 de Cd, 5 ± 2 µg g–1 de Cu, 12 ± 4 µg g–1 de Pb y 49 ± 17 µg g–1 de Zn) resultan una buena referencia de valores naturales de fondo para metales en las 18 rías gallegas. Aunque éstos son menores a otros considerados para la costa gallega, son similares a los medidos a nivel mundial en sedimentos marinos no contaminados. En Ferrol, las máximas concentraciones de metales se presentan generalmente en la parte media de la ría, donde se localiza el mayor núcleo de población y buena parte de la actividad industrial. Los datos allí obtenidos señalan la existencia de una evidente contaminación metálica en la parte media e interna de la ría de Ferrol con factores de enriquecimiento comprendidos entre 4–10 para Cd, 5 para Cu, 2–3 para Pb y 4–5 para Zn. Iniversidad Autónoma de Baja California 2005-03-06 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/31 10.7773/cm.v31i4.31 Ciencias Marinas; Vol. 31 No. 4 (2005); 653-659 Ciencias Marinas; Vol. 31 Núm. 4 (2005); 653-659 2395-9053 0185-3880 eng https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/31/14
institution Ciencias Marinas
collection OJS
language eng
format Online
author Cobelo-García, A
Labandeira, A
Prego, R
spellingShingle Cobelo-García, A
Labandeira, A
Prego, R
Two opposite cases of metal accumulation in ria sediments: Ferrol and Corme-Laxe (Galicia, NW Iberian Peninsula)
author_facet Cobelo-García, A
Labandeira, A
Prego, R
author_sort Cobelo-García, A
title Two opposite cases of metal accumulation in ria sediments: Ferrol and Corme-Laxe (Galicia, NW Iberian Peninsula)
title_short Two opposite cases of metal accumulation in ria sediments: Ferrol and Corme-Laxe (Galicia, NW Iberian Peninsula)
title_full Two opposite cases of metal accumulation in ria sediments: Ferrol and Corme-Laxe (Galicia, NW Iberian Peninsula)
title_fullStr Two opposite cases of metal accumulation in ria sediments: Ferrol and Corme-Laxe (Galicia, NW Iberian Peninsula)
title_full_unstemmed Two opposite cases of metal accumulation in ria sediments: Ferrol and Corme-Laxe (Galicia, NW Iberian Peninsula)
title_sort two opposite cases of metal accumulation in ria sediments: ferrol and corme-laxe (galicia, nw iberian peninsula)
description The accumulation of heavy metals (Cd, Cu, Pb and Zn) in surface sediments (<63 µm) of the Ferrol and Corme-Laxe rias was studied. These two rias have opposite characteristics from the point of view of both the morphology and the anthropogenic impact. Low metal concentrations were found in the Corme-Laxe Ria, with the highest values observed in the Anllóns River estuary, probably due to a higher lithogenic composition of the sediments. Concentrations in the Corme-Laxe Ria (Cd, 0.10 ± 0.03 µg g–1; Cu, 5 ± 2 µg g–1; Pb, 12 ± 4 µg g–1; and Zn, 49 ± 17 µg g–1) can be used as a good reference for metal background values for sediments from the 18 Galician rias. Although these background values are lower than those previously reported for the Galician coast, they are similar to those found in other uncontaminated coastal and marine systems. The highest concentrations for Ferrol were generally found in the middle part of the ria, which receives the most important urban and industrial impact. The values obtained show evident metal contamination in the middle and inner parts of the Ferrol Ria, with enrichment factors of 4–10 for Cd, 5 for Cu, 2–3 for Pb and 4–5 for Zn.
publisher Iniversidad Autónoma de Baja California
publishDate 2005
url https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/31
_version_ 1715723926300000256

Registros relacionados