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Title: An empirical approach to the determination of metal regional Sediment Quality Guidelines, in marine waters, within the European Water Framework Directive
Authors: Menchaca, Iratxe; Borja, Angel; Jesus Belzunce-Segarra, Maria; Mikel Garmendia, Joxe; Larreta, Joana; German Rodriguez, Jose; Franco, Javier
Citation: CHEMISTRY AND ECOLOGY, 2012, 28, 205-220
Abstract: Regional Sediment Quality Guidelines (SQG) for metals from the Basque Country (northern Spain) were determined. These guidelines are proposed to be used for management purposes, within the Water Framework Directive (WFD). SQG were determined on the basis of sediment chemistry, toxicity and benthic community disturbance, from 961 estuarine and coastal samples. The guidelines were calculated using a percentile approach (effect and non-effect data), following normalisation on the fine-sediment content and with non-normalisation. The feasibility of SQG was quantified by the incidence of adverse effects, that is, the ratio of effect/no-effect data, which increased significantly with increasing SQG ranges. The study proposes the following formula to calculate SQG: SQG(metal) = SQG(metal){*} mu g.g(-1)/FC. 10(-2) (where FC is fine-sediment content and SQG{*} is the normalised SQG). The SQG{*} were 13.5 mu g.g(-1) for As, 1 mu g.g(-1) for Cd, 39 mu g.g(-1) for Cr, 55 mu g.g(-1) for Cu, 0.53 mu g.g(-1) for Hg, 23 mu g.g(-1) for Ni, 78 mu g.g(-1) for Pb and 249 mu g.g(-1) for Zn. The use of four different organisational biological levels ensures an improvement in the determination of metal regional SQG for the assessment of the chemical and physicochemical status in marine waters, within the WFD.
Keywords: marine sediments; Sediment Quality Guidelines; metals; Basque Country; Water Framework Directive; COUNTRY NORTHERN SPAIN; ENVIRONMENTAL-QUALITY; PHYSICOCHEMICAL STATUS; PARACENTROTUS-LIVIDUS; ECOLOGICAL QUALITY; COASTAL SEDIMENTS; RISK-ASSESSMENT; ACUTE TOXICITY; BIOTIC INDEX; SEA-URCHIN
Issue Date: 2012
Publisher: TAYLOR \& FRANCIS LTD
Type: Article
Language: English
DOI: 10.1080/02757540.2011.651129
URI: http://dspace.azti.es/handle/24689/623
ISSN: 0275-7540
E-ISSN: 1029-0370
Funder: Fundacion Centros Tecnologicos-Inaki Goenaga
Ministerio de Educacion y Ciencia
Fondo Social Europeo
Basque Water Agency
Spanish Ministry of Education and Sciences [CTM2006-13880-C03-03/MAR]
Appears in Publication types:Artículos científicos



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