Person: Martens, Kerstin
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Veröffentlichung Hydrofluorocarbon emission reduction: a crucial contribution to climate protection(Umweltbundesamt, 2021) Graaf, Daniel de; Elsner, Cornelia; Graaf, Daniel de ; Hoffmann, Gabriele; Martens, Kerstin; Plehn, Wolfgang; Thalheim, Diana; Deutschland. UmweltbundesamtHydrofluorocarbons (HFCs) are the dominant fraction of fluorinated greenhouse gases, also known as F-gases. HFC emissions in the European Union (EU) amounted to 112 million tonnes CO2 equivalent (Mt CO2eq.) in 2018. This amounts to 2,2% of the EU's total greenhouse gas emissions. Main sources of HFC emissions are refrigeration and air conditioning plants and appliances. Following a proposal by the EU Commission, EU member states and the EU parliament just recently agreed to increase the 2030 target from 40% to 55% reduction of greenhouse gas emissions compared to the 1990 level. This considerable step-up of climate ambition by more than a third needs to be reflected also in the revision process of the F-gas Regulation, regardless of the achievements already made to curb F-gas emissions. On the occasion of the F-gas Regulation revision, the German Environment Agency proposes the acceleration of the phase-down scenario, resulting in larger reduction steps from 2024 on and a final level of 10% of the baseline by 2030 compared to 21% according to the current schedule. Source: www.umweltbundesamt.deVeröffentlichung Recovery of Fluorinated Refrigerants from Decommissioned RAC Equipment in Germany - Implications for National Emission Reporting under the UNFCCC(2024) Behringer, David; Gschrey, Barbara; Martens, KerstinGermany is obliged to report emissions of fluorinated greenhouse gases annually under the UNFCCC. This includes emissions of fluorinated refrigerants when decommissioning RAC equipment. To obtain this information, data on the recovery, recycling, and disposal of fluorinated greenhouse gases is necessary, but such data are scarce. The VDKF-LEC database contains information on the recovery of fluorinated refrigerants from decommissioned RAC equipment in Germany and an extracted dataset was used to obtain real-world information for the years 2017 to 2021. Recovery rates for different fluorinated refrigerants from decommissioned commercial and industrial refrigeration as well as stationary air-conditioning equipment were derived. Furthermore, average lifetimes of equipment for the different sectors were calculated. In the analysis, a dependency of charged refrigerant and age of the unit at decommissioning could be observed. Results from the analysis of the VDKF-LEC dataset were compared with reported data under the UNFCCC for Germany and other available data sources. © 2023 by the authorsVeröffentlichung 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 Reducing the input of chemicals into waters: trifluoroacetate (TFA) as a persistent and mobile substance with many sources(Umweltbundesamt, 2022) 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. UmweltbundesamtTrifluoroacetate (TFA) is a mobile and persistent substance that is primarily introduced into the water cycle through the degradation of various fluorochemicals and remains in the environment in the long term. TFA can be detected in many water bodies in relatively high concentrations with some regional hotspots. This background paper presents current data and estimates on sources, input pathways, contamination, impact and measures on TFA. It gives an outlook on first activities and options to comprehensively minimise TFA inputs to the environment. Despite gaps in knowledge, it becomes clear that consistent regulation and an overarching minimisation strategy must be initiated in the short term. Quelle: www.umweltbundesamt.deVeröffentlichung Klimaschutz im Lebensmittelhandel - der Blaue Engel für Supermärkte(2022) Martens, Kerstin