Publikation:
Three reasons why the Water Framework Directive (WFD) fails to identify pesticide risks

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dc.contributor.authorArle, Jens
dc.contributor.authorLiebmann, Liana
dc.contributor.authorWeisner, Oliver
dc.date.accessioned2024-06-16T13:30:54Z
dc.date.available2024-06-16T13:30:54Z
dc.date.issued2021
dc.description.abstractThe Water Framework Directive (WFD) demands that good status is to be achieved for all European water bodies. While governmental monitoring under the WFD mostly concludes a good status with regard to pesticide pollution, numerous scientific studies have demonstrated widespread negative ecological impacts of pesticide exposure in surface waters. To identify reasons for this discrepancy, we analysed pesticide concentrations measured in a monitoring campaign of 91 agricultural streams in 2018 and 2019 using methodologies that exceed the requirements of the WFD. This included a sampling strategy that takes into account the periodic occurrence of pesticides and a different analyte spectrum designed to reflect current pesticide use. We found that regulatory acceptable concentrations (RACs) were exceeded for 39 different pesticides at 81% of monitoring sites. In comparison, WFD-compliant monitoring of the same sites would have detected only eleven pesticides as exceeding the WFD-based environmental quality standards (EQS) at 35% of monitoring sites. We suggest three reasons for this underestimation of pesticide risk under the WFD-compliant monitoring: (1) The sampling approach - the timing and site selection are unable to adequately capture the periodic occurrence of pesticides and investigate surface waters particularly susceptible to pesticide risks; (2) the measuring method - a too narrow analyte spectrum (6% of pesticides currently approved in Germany) and insufficient analytical capacities result in risk drivers being overlooked; (3) the assessment method for measured concentrations - the protectivity and availability of regulatory thresholds are not sufficient to ensure a good ecological status. We therefore propose practical and legal refinements to improve the WFD's monitoring and assessment strategy in order to gain a more realistic picture of pesticide surface water pollution. This will enable more rapid identification of risk drivers and suitable risk management measures to ultimately improve the status of European surface waters. © 2021 Elsevier Ltd.en
dc.format.extent1 Onlineresource (9 pages)
dc.format.mediumonline resource
dc.identifier.doihttps://doi.org/10.60810/openumwelt-2002
dc.identifier.urihttps://openumwelt.de/handle/123456789/3182
dc.language.isoeng
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.subjectWassergüte
dc.subjectLandwirtschaft
dc.subjectSüßwasserökosystem
dc.titleThree reasons why the Water Framework Directive (WFD) fails to identify pesticide risks
dc.typeWissenschaftlicher Artikel
dc.type.dcmitext
dc.type.mediumcomputer
dspace.entity.typePublication
local.bibliographicCitation.journalTitleWater Research
local.bibliographicCitation.originalDOI10.1016/j.watres.2021.117848
local.bibliographicCitation.volume208 (2021)
local.collectionAufsätze
local.contributor.authorId(DE-588)125270142X
local.contributor.authorId02187960
local.identifier.catalogId02487215
local.ingest.leader05978naa a2200000uu 4500
local.jointTitleTHREE REASONS WHY THE WATER FRAMEWORK DIRECTIVE WFD FAILS TO IDENTIFY PESTICIDE RISKS
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relation.isAuthorOfPublication62a332ac-3a7f-436d-b9a1-d95e6a8063dd
relation.isAuthorOfPublication.latestForDiscovery2ff95803-843b-4dfd-b604-c4a8c7f72b0c
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