Person: Biegel-Engler, Annegret
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Veröffentlichung Significance thresholds for the assessment of contaminated groundwater: perfluorinated and polyfluorinated chemicals(2018) von der Trenck, Karl Theo; Biegel-Engler, Annegret; Konietzka, RainerBackground Per- and polyfluorinated chemicals (PFC) do not occur naturally in the environment and are, therefore, of anthropogenic origin. As a consequence of their wide range of everyday applications and their extreme persistence in the environment, PFC have become ubiquitous in nature and can, therefore, be detected in groundwater as well as in many other environmental matrices. The German States' Water and Soil Consortia have compiled 'significance thresholds' (GFS) to assess groundwater contaminated with PFC. The GFS serve as criteria for the decision whether actions to remediate polluted groundwater are necessary. Thirteen of these PFC had been detected in groundwater at levels above their limit of quantitation and were assigned first priority. Results The data regarding human health effects were sufficient to derive guide values according to the criteria of the German Drinking Water Ordinance for 7 of the 13 first-priority PFC. With regard to available ecotoxicological data, predicted no-effect concentration values from official risk assessments existed for 2 of the 13 first-priority PFC. A predicted no-effect concentration for protection of the aquatic biocenosis could be derived for eight more substances. Conclusions After evaluation of data from available literature regarding both human health and ecotoxicological effects, significance thresholds ranging from 0.06 to 10.0 ng/L could be derived for 7 of the 13 priority PFC in groundwater. As a practical guide valid solely for human health-based values, a summation rule was proposed for exposures to mixtures of these seven PFC.Veröffentlichung Digging deep - implementation, standardisation and interpretation of a total oxidisable precursor (TOP) assay within the regulatory context of per- and polyfluoroalkyl substances (PFASs) in soil(2022) Göckener, Bernd; Bandow, Nicole; Lange, Frank Thomas; Biegel-Engler, Annegret; Lesmeister, LukasOver the past decades, thousands of different per- and polyfluoroalkyl substances (PFASs) have been produced and applied in various industrial processes and consumer products. Their structural diversity has reached a level that cannot be covered by classical target screening methods for individual compounds. Large-scale contaminations of soil, however, require the need to adapt new analytical methods that can describe a contamination more comprehensively. While sum parameters such as the total oxidisable precursor (TOP) assay have been developed in the past years, they are not yet applied in the regulatory context of PFASs. In this commentary, we provide an overview on different approaches of the TOP assay as well as its benefits and disadvantages to other sum parameters for PFASs in soil samples. Furthermore, we elaborate its opportunities and its challenges that need to be tackled to implement the TOP assay as a regulatory tool. With several different approaches of the TOP assay being available, a sound and standardised method needs to be agreed upon and more research is necessary to better describe the method. Although the complexity of PFAS contaminations in soil cannot be fully covered by any analytical method alone, the TOP assay can provide valuable data to detect and characterise soil contamination as an inventory for subsequent remediation measures. Therefore, the TOP assay should be implemented as a useful tool both in research and in the regulatory context of PFASs. © The Author(s) 2022.Veröffentlichung PFAS - unsere persistenten Begleiter(2020) Schulte, Christoph; Biegel-Engler, AnnegretVeröffentlichung Kunststoffe in Böden(Umweltbundesamt, 2021) Schneider, Isger; Biegel-Engler, Annegret; Eichler, Philipp; Krüger, Franziska; Hermann, Tim; Weißhaupt, Petra; Keßler, Hermann; Sättler, Daniel; Braun, Ulrike; Scholz, Katrin-Nannette; Deutschland. UmweltbundesamtKunststoffe sind vielseitig einsetzbar und erleichtern uns das Leben in vielen Bereichen. Zum Problem können Kunststoffe werden, wenn sie in die Umwelt gelangen und dort von Organismen aufgenommen und in die Ökosysteme eingetragen werden. Folgen der Verunreinigungen mit großen Kunststoffteilen wie Plastiktüten sind offensichtlich, doch auch das kaum sichtbare Mikroplastik birgt Risiken für die Umwelt und die menschliche Gesundheit. Denn einmal in die Umwelt eingetragen, kann Mikroplastik kaum zurückgeholt werden. Der vorliegende Bericht zeigt den Sachstand zum Vorkommen von Kunststoffen in Böden, erläutert die Folgen für die Böden, angrenzenden Medien, Pflanzen und Menschen. Er benennt bereits laufende Maßnahmen, um Kunststoffeinträge in die Böden wirksam zu reduzieren. Darüber hinaus adressiert er, neben dem Forschungsbedarf, den notwendigen weiteren Handlungsbedarf. Quelle: https://www.umweltbundesamt.de/Veröffentlichung Chemikalieneintrag in Gewässer vermindern -Trifluoracetat (TFA) als persistente und mobile Substanz mit vielen Quellen(Umweltbundesamt, 2021) Adlunger, Kirsten; Anke, Julia Margaretha; Bachem, Gunnar; Banning, Helena; Biegel-Engler, Annegret; Blondzik, Katrin; Braun, Ulrike; Eckhardt, Alexander; Gildemeister, Daniela; Hilliges, Falk; Hoffmann, Gabriele; Schneider, Franziska; Jentzsch, Franziska; Klitzke, Sondra; Kuckelkorn, Jochen; Martens, Kerstin; Müller, Alexandra; Pickl, Christina; Rechenberg, Jörg; Sättler, Daniel; Schmidt, Uwe; Speichert, Gunther; Warnke, Ingo; Wehner, Jeannine; Wischer, Ronny; Deutschland. UmweltbundesamtTrifluoracetat (TFA) ist ein mobiler und persistenter Stoff, der primär durch den Abbau verschiedener Fluorchemikalien in den Wasserkreislauf eingetragen wird und dort auf unabsehbare Zeit verbleibt. Bereits jetzt besteht eine hohe Grundbelastung vieler Gewässer mit TFA mit einigen regionalen Hotspots. Dieses Hintergrundpapier präsentiert aktuelle Daten und Abschätzungen zu Quellen, Eintragspfaden, Belastungen, Auswirkungen und Maßnahmen zu TFA. Es gibt einen Ausblick auf erste Aktivitäten und Optionen zur umfassenden Minimierung von TFA-Einträgen in die Umwelt. Trotz Wissenslücken wird deutlich, dass kurzfristig eine konsistente Regulation und eine übergreifende Minimierungsstrategie auf den Weg gebracht werden müssen. Quelle: www.umweltbundesamt.deVeröffentlichung The upcoming European Soil Health Law - chances and challenges for an effective soil protection(Umweltbundesamt, 2023) Biegel-Engler, Annegret; Frauenstein, Jörg; Ginzky, Harald; Glante, Frank; Grimski, Detlef; Kotschik, Pia; Marx, Kirstin; Pieper, SilviaThe European Soil Strategy for 2030 by the European Commission has set the foundations for an overarching approach to the protection of soils in Europe. In this scientific opinion paper, the German Environment Agency (⥠UBA⥠) lays down its key recommendations for the upcoming Soil Health Law. Feedback on legislative options is provided and experience gained in Germany in the past years on soil protection and restoration is shared. Knowing the outstanding importance of soils for human and ecosystem health, UBA strongly agrees that a new binding European legislative framework on soils with high ambition is urgently needed. Quelle: Umweltbundesamt.deVeröffentlichung Per- and polyfluoroalkyl substances in the German environment - Levels and patterns in different matrices(2020) Kotthoff, Matthias; Biegel-Engler, Annegret; Fliedner, Annette; Rüdel, Heinz; Koschorreck, JanPer- and polyfluoroalkyl substances (PFAS) in the environment mostly originate from emissions of previously unregulated PFAS. However, there are also many documented incidents of accidental releases. To track such releases, it is essential to distinguish between typical background contamination and legally relevant incidents. This requires a comprehensive overview of all PFAS present in the environment, which is currently only possible to a limited extent due to the large variety of individual compounds. In the present study, a multimethod for capturing 41 PFAS including perfluoroalkyl acid (PFAA) precursors is introduced. The applicability of the method was tested on terrestrial, freshwater and marine samples from the German Environmental Specimen Bank (ESB), thereby providing a rough overview of PFAS contamination in German environment. Special focus was put on soil samples from ESB sites across Germany in comparison to soil samples from a polluted site in south-west Germany. The method was successfully applied to environmental samples. In total, 31 PFAS were detected, among them PFAA precursors and fluorinated ethers. Substance patterns differed between sites and matrices. In ESB soil samples from 2014 (n = 11), the sum of all captured PFAS ranged between 0.75 and 19.5 (my)g kg-1 dry weight (dw), while concentrations between 416 (my)g kg-1 and 3530 (my)g kg-1 were detected in samples from the incident site (n = 10). In other matrices, total PFAS concentrations were magnitudes lower. Highest concentrations were observed for PFOS in bream livers from the Saale (226 (my)g kg-1). Given the heterogeneous patterns, it will require further broadly-based monitoring data to allow for a solid estimation of relevant background levels. The data provided here may support the differentiation between background levels and hotspot contaminations. ©2020 The AuthorsVeröffentlichung Extreme Starkregen- und Hochwasserereignisse können einen deutlichen stofflichen Fußabdruck in Böden hinterlassen(Umweltbundesamt, 2021) Rückert, Leonie; Biegel-Engler, Annegret; Frauenstein, JörgVeröffentlichung Leitfaden zur PFAS-Bewertung(BMUV, 2022) Bieber, Andreas; Biegel-Engler, Annegret; Gierig, Michael; Deutschland. Bundesministerium für Umwelt, Naturschutz, nukleare Sicherheit und VerbraucherschutzVeröffentlichung PFAS in Boden und Grundwasser - Herausforderungen und Lösungsansätze(2022) Biegel-Engler, Annegret