Metal and metalloid pollution in shelf sediments from the Gulf of Cádiz (Southwest Spain): Long-lasting effects of a historical mining area
The Gulf of Cadiz is an area historically affected by acid mine drainage and also by the discharge of two important rivers, the Guadiana and the Guadalquivir. Metal and metalloid (As, Cd, Hg, Pb, Zn, Cu, Cr, Ni, Mn, Fe, Al and Li) concentrations were measured in 33 surface sediment samples, collecte...
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ftcsic:oai:digital.csic.es:10261/321880 2024-02-11T10:06:41+01:00 Metal and metalloid pollution in shelf sediments from the Gulf of Cádiz (Southwest Spain): Long-lasting effects of a historical mining area Besada, Victoria Bellas, Juan Sánchez-Marín, Paula Bernárdez, Patricia Schultze, Fernando Océan atlantique Atlantique Nord Atlantic Ocean Atlántico Norte Océano Atlántico ICES North Atlantic 2021-12-11 http://hdl.handle.net/10508/15809 http://hdl.handle.net/10261/321880 https://doi.org/10.1016/j.envpol.2021.118675 en eng Centro Oceanográfico de Vigo VoR Environmental Pollution, 295. 2021: 118675-12 0269-7491 http://hdl.handle.net/10508/15809 http://hdl.handle.net/10261/321880 https://doi.org/10.1016/j.envpol.2021.118675 50133 1873-6424 open MSFD Centro Oceanográfico de Vigo Medio Marino sediments metals Spain Background levels fish mining radio pollution monitoring monitoring islands pollution research article 2021 ftcsic https://doi.org/10.1016/j.envpol.2021.118675 2024-01-16T11:46:42Z The Gulf of Cadiz is an area historically affected by acid mine drainage and also by the discharge of two important rivers, the Guadiana and the Guadalquivir. Metal and metalloid (As, Cd, Hg, Pb, Zn, Cu, Cr, Ni, Mn, Fe, Al and Li) concentrations were measured in 33 surface sediment samples, collected in the continental shelf, inside the Ría de Huelva and the Bay of Cádiz, to assess the metal pollution status of this area. Geographical distribution was identified for different groups of metals: Cu, Cd, Zn, Hg and As were mainly associated with discharges of the Tinto and Odiel rivers, which have been historically affected by mining, into the Ría de Huelva. Sediments inside this Ría presented the highest concentrations of the whole area for these metals, and enrichment factors revealed that Hg and Cu pollution spread up to 20 km away from the mouth of this Ría, into the continental shelf. On the contrary, the distribution of Ni, Cr and Mn did not show a clear gradient with distance from a pollution source, and was mainly explained by geochemical factors, such as their association with fine materials. The comparison of metal concentrations with sediment quality guidelines, predicts that adverse ecological effects due to the metal pollution may be occurring in a group of stations located in the northwest corner of the studied area. Local background levels for metals in the Gulf of Cádiz were proposed and the information obtained will be useful to identify those areas where sampling must be intensified in ongoing Marine Strategy Framework Directive (MSFD) monitoring programs. These results corroborate that metal pollution is still a serious problem in the Gulf of Cádiz. SI Article in Journal/Newspaper North Atlantic Digital.CSIC (Spanish National Research Council) Environmental Pollution 295 118675 |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
topic |
MSFD Centro Oceanográfico de Vigo Medio Marino sediments metals Spain Background levels fish mining radio pollution monitoring monitoring islands pollution |
spellingShingle |
MSFD Centro Oceanográfico de Vigo Medio Marino sediments metals Spain Background levels fish mining radio pollution monitoring monitoring islands pollution Besada, Victoria Bellas, Juan Sánchez-Marín, Paula Bernárdez, Patricia Schultze, Fernando Metal and metalloid pollution in shelf sediments from the Gulf of Cádiz (Southwest Spain): Long-lasting effects of a historical mining area |
topic_facet |
MSFD Centro Oceanográfico de Vigo Medio Marino sediments metals Spain Background levels fish mining radio pollution monitoring monitoring islands pollution |
description |
The Gulf of Cadiz is an area historically affected by acid mine drainage and also by the discharge of two important rivers, the Guadiana and the Guadalquivir. Metal and metalloid (As, Cd, Hg, Pb, Zn, Cu, Cr, Ni, Mn, Fe, Al and Li) concentrations were measured in 33 surface sediment samples, collected in the continental shelf, inside the Ría de Huelva and the Bay of Cádiz, to assess the metal pollution status of this area. Geographical distribution was identified for different groups of metals: Cu, Cd, Zn, Hg and As were mainly associated with discharges of the Tinto and Odiel rivers, which have been historically affected by mining, into the Ría de Huelva. Sediments inside this Ría presented the highest concentrations of the whole area for these metals, and enrichment factors revealed that Hg and Cu pollution spread up to 20 km away from the mouth of this Ría, into the continental shelf. On the contrary, the distribution of Ni, Cr and Mn did not show a clear gradient with distance from a pollution source, and was mainly explained by geochemical factors, such as their association with fine materials. The comparison of metal concentrations with sediment quality guidelines, predicts that adverse ecological effects due to the metal pollution may be occurring in a group of stations located in the northwest corner of the studied area. Local background levels for metals in the Gulf of Cádiz were proposed and the information obtained will be useful to identify those areas where sampling must be intensified in ongoing Marine Strategy Framework Directive (MSFD) monitoring programs. These results corroborate that metal pollution is still a serious problem in the Gulf of Cádiz. SI |
format |
Article in Journal/Newspaper |
author |
Besada, Victoria Bellas, Juan Sánchez-Marín, Paula Bernárdez, Patricia Schultze, Fernando |
author_facet |
Besada, Victoria Bellas, Juan Sánchez-Marín, Paula Bernárdez, Patricia Schultze, Fernando |
author_sort |
Besada, Victoria |
title |
Metal and metalloid pollution in shelf sediments from the Gulf of Cádiz (Southwest Spain): Long-lasting effects of a historical mining area |
title_short |
Metal and metalloid pollution in shelf sediments from the Gulf of Cádiz (Southwest Spain): Long-lasting effects of a historical mining area |
title_full |
Metal and metalloid pollution in shelf sediments from the Gulf of Cádiz (Southwest Spain): Long-lasting effects of a historical mining area |
title_fullStr |
Metal and metalloid pollution in shelf sediments from the Gulf of Cádiz (Southwest Spain): Long-lasting effects of a historical mining area |
title_full_unstemmed |
Metal and metalloid pollution in shelf sediments from the Gulf of Cádiz (Southwest Spain): Long-lasting effects of a historical mining area |
title_sort |
metal and metalloid pollution in shelf sediments from the gulf of cádiz (southwest spain): long-lasting effects of a historical mining area |
publishDate |
2021 |
url |
http://hdl.handle.net/10508/15809 http://hdl.handle.net/10261/321880 https://doi.org/10.1016/j.envpol.2021.118675 |
op_coverage |
Océan atlantique Atlantique Nord Atlantic Ocean Atlántico Norte Océano Atlántico ICES North Atlantic |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
Centro Oceanográfico de Vigo VoR Environmental Pollution, 295. 2021: 118675-12 0269-7491 http://hdl.handle.net/10508/15809 http://hdl.handle.net/10261/321880 https://doi.org/10.1016/j.envpol.2021.118675 50133 1873-6424 |
op_rights |
open |
op_doi |
https://doi.org/10.1016/j.envpol.2021.118675 |
container_title |
Environmental Pollution |
container_volume |
295 |
container_start_page |
118675 |
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1790604557572636672 |