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Title: Source characterization and spatio-temporal evolution of the metal pollution in the sediments of the Basque estuaries (Bay of Biscay)
Authors: Legorburu, Irati; German Rodriguez, Jose; Borja, Angel; Solaun, Oihana; Valencia, Victoriano; Larreta, Joana; Menchaca, Iratxe; Galparsoro, Ibon
Citation: MARINE POLLUTION BULLETIN, 2013, 66, 25-38
Abstract: According to Water Framework Directive requirements, Member States must identify and analyze effects derived from human pressures in aquatic systems. As different kind of pressures can impact water bodies at different scales, analyses of spatio-temporal evolution of water bodies becomes essential in order to understand ecosystem responses. In this investigation, an analysis of spatio-temporal evolution of sedimentary metal pollution (Cd, Cr, Cu, Hg, Ni, Pb, Zn) in 12 Basque estuaries (Bay of Biscay) is presented. Data collected in extensive sampling surveys is the basis for the GIS-based statistical approach used. The implementation of pollution abatement measures is reflected in a long-term decontamination process, mostly evident in estuaries with highest historical sediment pollution levels. Spatial evolution is determined by either naturally occurring or human driven processes. Such spatial processes are more obviously being reflected in estuaries with lower historical sediment pollution levels. (C) 2012 Elsevier Ltd. All rights reserved.
Keywords: Sediment; Metal; Spatio-temporal evolution; GIS; Estuary; Bay of Biscay; ORGANIC-MATTER; HEAVY-METAL; MARINE-SEDIMENTS; METHODOLOGICAL APPROACH; BENTHIC COMMUNITIES; LASER DIFFRACTION; AQUATIC SEDIMENTS; ECOLOGICAL STATUS; NORTHERN SPAIN; WATER-QUALITY
Issue Date: 2013
Publisher: PERGAMON-ELSEVIER SCIENCE LTD
Type: Article
Language: English
DOI: 10.1016/j.marpolbul.2012.11.016
URI: http://dspace.azti.es/handle/24689/563
ISSN: 0025-326X
E-ISSN: 1879-3363
Funder: Basque Water Agency (URA)
Department of Environment, Land Use, Agriculture and Fisheries of the Basque Government
Inaki Goenaga Technological Centres Foundation of the Basque Country
Appears in Publication types:Artículos científicos



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