Title: Assessment of the Ecological Status of European Surface Waters: A Work in Progress
Citation: HYDROBIOLOGIA vol. 633 no. 1 p. 197-211
Publisher: SPRINGER
Publication Year: 2009
JRC N°: JRC53093
ISSN: 0018-8158
URI: http://www.springerlink.com/content/ju705p10q421t161/
DOI: 10.1007/s10750-009-9883-9
Type: Articles in periodicals and books
Abstract: The 'normative definitions' of ecological water quality classes given by the Water Framework Directive (WFD) are narrative descriptions of the conditions present in water bodies of different quality relative to reference conditions found in unimpacted sites. In order to fill these descriptions with a more solid content, the definitions have been a subject of intensive development of quantitative methodologies for ecological status assessment as well as for rules and criteria for setting of reference conditions and ecological status boundaries for classification of water bodies. Papers in the present special issue of Hydrobiologia ¿Assessment of the ecological status of European surface waters¿ contribute to this process, including some highlights of the WFD intercalibration process that has been carried out between 2002 and 2008. In the present paper the guest editors of the special issue recall the basic principles of the WFD that sometimes have been overlooked and point out some gaps remained and problems arisen during the ongoing implementation of the directive.
JRC Directorate:Sustainable Resources

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