Publikation:
Nutrient criteria for surface waters under the European Water Framework Directive: Current state-of-the-art, challenges and future outlook

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dc.contributor.authorPoikane, Sandra
dc.contributor.authorClaussen, Ulrich
dc.contributor.authorKelly, Martyn G.
dc.contributor.authorSalas Herrero, Fuensanta
dc.contributor.authorLeujak, Wera
dc.date.accessioned2024-06-16T14:37:27Z
dc.date.available2024-06-16T14:37:27Z
dc.date.issued2019
dc.description.abstractThe aim of European water policy is to achieve good ecological status in all rivers, lakes, coastal and transitional waters by 2027. Currently, more than half of water bodies are in a degraded condition and nutrient enrichment is one of the main culprits. Therefore, there is a pressing need to establish reliable and comparable nutrient criteria that are consistent with good ecological status. This paper highlights the wide range of nutrient criteria currently in use by Member States of the European Union to support good ecological status and goes on to suggest that inappropriate criteria may be hindering the achievement of good status. Along with a comprehensive overview of nutrient criteria, we provide a critical analysis of the threshold concentrations and approaches by which these are set. We identify four essential issues: (1) Different nutrients (nitrogen and/or phosphorus) are used for different water categories in different countries. (2) The use of different nutrient fractions (total, dissolved inorganic) and statistical summary metrics (e.g., mean, percentiles, seasonal, annual) currently hampers comparability between countries, particularly for rivers, transitional and coastal waters. (3) Wide ranges in nutrient threshold values within shared water body types, in some cases showing more than a 10-fold difference in concentrations. (4) Different approaches used to set threshold nutrient concentrations to define the boundary between "good" and "moderate" ecological status. Expert judgement-based methods resulted in significantly higher (less stringent) good-moderate threshold values compared with data-driven approaches, highlighting the importance of consistent and rigorous approaches to criteria setting. We suggest that further development of nutrient criteria should be based on relationships between ecological status and nutrient concentrations, taking into account the need for comparability between different water categories, water body types within these categories, and countries. © 2019 The Authors. Published by Elsevier B.V.en
dc.format.extent1 Onlineressource (14 Seiten)
dc.format.mediumonline resource
dc.identifier.doihttps://doi.org/10.60810/openumwelt-2102
dc.identifier.urihttps://openumwelt.de/handle/123456789/5111
dc.language.isoeng
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.subjectEutrophierung
dc.subjectPhosphor
dc.subjectStickstoff
dc.subjectBinnengewässer
dc.subjectKüstengewässer
dc.titleNutrient criteria for surface waters under the European Water Framework Directive: Current state-of-the-art, challenges and future outlook
dc.typeWissenschaftlicher Artikel
dc.type.dcmitext
dc.type.mediumcomputer
dspace.entity.typePublication
local.bibliographicCitation.journalTitleThe Science of the Total Environment
local.bibliographicCitation.originalDOI10.1016/j.scitotenv.2019.133888
local.bibliographicCitation.volume695 (2019)
local.collectionAufsätze
local.contributor.authorId02182757
local.contributor.authorId02182758
local.contributor.authorId02182759
local.identifier.catalogId02468590
local.ingest.leader06477naa a2200000uu 4500
local.jointTitleNUTRIENT CRITERIA FOR SURFACE WATERS UNDER THE EUROPEAN WATER FRAMEWORK DIRECTIVE CURRENT STATEOFTHEART CHALLENGES AND FUTURE OUTLOOK
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