Publikation:
Persistent degradation products of halogenated refrigerants and blowing agents in the environment: type, environmental concentrations, and fate with particular regard to new halogenated substitutes with low global warming potential

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dc.contributor.authorBehringer, David
dc.contributor.authorHeydel, Felix
dc.contributor.authorGschrey, Barbara
dc.contributor.organisationOtherÖko-Recherche, Büro für Umweltforschung und -beratung (Frankfurt, Main)
dc.contributor.organisationalEditorDeutschland. Umweltbundesamt
dc.contributor.otherHoffmann, Gabriele
dc.date.accessioned2024-06-16T13:42:52Z
dc.date.available2024-06-16T13:42:52Z
dc.date.issued2021
dc.date.submittedReport compledet in: September 2020
dc.description.abstractDieser Bericht beschreibt den Ist-Zustand und die Entwicklung der Verwendung und der Emissionen halogenierter Kälte- und Treibmittel in Deutschland und in der EU. Der Fokus liegt auf teilfluorierten Fluorkohlenwasserstoffen (HFKW) und ungesättigten halogenierten Kohlenwasserstoffen mit kleinem Treibhauspotential (u-HFKW und u-HFCKW) sowie deren atmosphärischen Abbauprodukten. Neben Fluorwasserstoff wurde insbesondere Trifluoressigsäure (TFA) bzw. Trifluoracetat als persistentes Abbauprodukt einiger halogenierter Kälte- und Treibmittel identifiziert. Der Bedarf, die Emissionen und die Menge der Abbauprodukte von halogenierten Kälte- und Treibmitteln wurden bis zum Jahr 2050 in einem Szenario mit maximaler zukünftiger Verwendung und Emission ungesättigter halogenierter Stoffe modelliert. Die Projektionen zeigen, dass zukünftig insbesondere die Emissionen des Kältemittels u-HFKW-1234yf aus der mobilen und stationären Klimatisierung einen hohen zusätzlichen Anteil zu den TFA- bzw. Trifluoracetat-Mengen in der Atmosphäre beitragen werden. Um den atmosphärischen Eintrag von Trifluoracetat über den Niederschlag zu quantifizieren, wurde erstmalig ein zweijähriges deutschlandweites Messprogramm von Februar 2018 bis März 2020 durchgeführt. Im Vergleich zu früheren Messungen im Rahmen anderer Projekte ergaben sich deutlich erhöhte Konzentrationen von Trifluoracetat im Regenwasser. Basierend auf den Projektionen und den Ergebnissen des Messprogramms konnte der zu erwartende maximale Eintrag von TFA bzw. Trifluoracetat aus dem atmosphärischen Abbau halogenierter Kälte- und Treibmittel in Deutschland und der EU abgeschätzt werden. Die Verwendung von halogenierten Ersatzstoffen mit kleinem Treibhauspotential ist angesichts der Persistenz von TFA bzw. Trifluoracetat in der Umwelt als problematisch anzusehen. TFA bzw. Trifluoracetat-Einträge in Grund- und Trinkwasser können nur mit erheblichem Aufwand wieder entfernt werden. Daher sollten fluorierte Kälte- und Treibmittel durch nachhaltigere Lösungen mit halogenfreien Stoffen ersetzt werden. Quelle: Forschungsberichtde
dc.description.abstractThis report describes the current status and the development of the use and emissions of halogenated refrigerants, foam blowing agents and aerosol propellants in Germany and in the EU. The focus is on hydrofluorocarbons (HFCs) and unsaturated hydrofluorocarbons with low global warming potential (u-HFCs and u-HCFCs) and their atmospheric degradation products. In addition to hydrogen fluoride, trifluoroacetic acid (TFA) or trifluoroacetate have been identified as persistent degradation products of some halogenated refrigerants foam blowing agents and aerosol propellants. The demand, the emissions, and the amount of degradation products of halogenated refrigerants, foam blowing agents and aerosol propellants were modelled in a scenario with maximal future use and emissions of unsaturated halogenated substances up to the year 2050. The projections show that in the future, especially the emissions of the refrigerant u-HFC-1234yf from mobile and stationary air conditioning will add a large additional share to the amounts of TFA or trifluoroacetate in the atmosphere. In order to quantify the atmospheric input of trifluoroacetate via precipitation, a two-year nationwide measurement programme was carried out in Germany for the first time, from February 2018 to March 2020. Compared with earlier measurements in the context of other projects, significantly higher concentrations of trifluoroacetate were found in rainwater. Based on the projections and the results of the measurement programme, the expected maximal input of TFA or trifluoroacetate from the atmospheric degradation of halogenated refrigerants, foam blowing agents and aerosol propellants in Germany and the EU were calculated. The use of halogenated substitutes with a low global warming potential must be regarded as problematic in view of the persistence of TFA or trifluoroacetate in the environment. TFA or trifluoroacetate inputs into groundwater and drinking water can only be removed with considerable effort. Therefore, fluorinated refrigerants, foam blowing agents and aerosol propellants should be replaced by more sustainable solutions with halogen-free substances. Quelle: Forschungsberichten
dc.description.abstractClimate-impacting refrigerants and blowing agents are often replaced by halogenated substances which, despite their low global warming potential, are not unproblematic for the environment. The study examines quantities used and emissions today and in the future as well as degradation pathways and products. An environmentally relevant degradation product is the persistent trifluoroacetic acid (TFA). A two-year measurement campaign of TFA at 8 monitoring sites in Germany showed that TFA levels in precipitation are already several times higher than they were 25 years ago and are expected to rise even further. Therefore, the use and development of products with halogen-free refrigerants and blowing agents must be further accelerated.en
dc.description.abstractClimate-impacting refrigerants and blowing agents are often replaced by halogenated substances which, despite their low global warming potential, are not unproblematic for the environment. The study examines quantities used and emissions today and in the future as well as degradation pathways and products. An environmentally relevant degradation product is the persistent trifluoroacetic acid (TFA). A two-year measurement campaign of TFA at 8 monitoring sites in Germany showed that TFA levels in precipitation are already several times higher than they were 25 years ago and are expected to rise even further. Therefore, the use and development of products with halogen-free refrigerants and blowing agents must be further accelerated.en
dc.format.extent259
dc.format.mediumonline resource
dc.identifier.doihttps://doi.org/10.60810/openumwelt-6602
dc.identifier.urihttps://openumwelt.de/handle/123456789/3528
dc.language.isoeng
dc.publisherUmweltbundesamt
dc.relation.hastranslationhttps://doi.org/10.60810/openumwelt-6283
dc.relation.ispartofseriesTexte
dc.relation.urihttps://cms.umweltbundesamt.de/en/topics/climate-energy/fluorinated-greenhouse-gases-fully-halogenated-cfcs/emissions-degradation-products/degradation-products-of-fluorinated-greenhouse
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.source.urihttp://www.umweltbundesamt.de/sites/default/files/medien/5750/publikationen/2021-05-06_texte_73-2021_persistent_degradation_products.pdf
dc.subjectKühlmittel
dc.subjectatmospheric degradation
dc.subjectflourinated
dc.subjectF-gas
dc.subjectgreenhous gas
dc.subjectHFC
dc.subjectHFO
dc.subjectrefrigerant
dc.subjectTFA
dc.subjecttrifluoroacetate
dc.subjecttrifluoroacetic acid
dc.subject.ubaThemeChemicals
dc.titlePersistent degradation products of halogenated refrigerants and blowing agents in the environment: type, environmental concentrations, and fate with particular regard to new halogenated substitutes with low global warming potentialen
dc.title.alternativePersistent degradation products of halogenated refrigerants and blowing agents in the environment
dc.typeForschungsbericht
dc.typeMonographie
dc.type.dcmitext
dc.type.mediumcomputer
dspace.entity.typePublication
local.audienceUnternehmen
local.bibliographicCitation.number73/2021
local.bibliographicCitation.publisherPlaceDessau-Roßlau
local.collectionTexte / Umweltbundesamt
local.contributor.authorId02187460
local.contributor.authorId(DE-588)1135153051
local.contributor.authorId(DE-588)1115669745
local.contributor.authorId02187461
local.contributor.authorId02136145
local.contributor.otherId00264668
local.identifier.catalogId02483353
local.identifier.cmsId87444
local.identifier.fundingIndicator3717413050
local.identifier.standardizedFundingIndicator37174130
local.ingest.catalogBCnumber73/2021
local.ingest.cmsBCnumber73/2021
local.ingest.cmsCreatedOn2021-05-06T16:45:44
local.ingest.cmsModifiedOn2024-07-15T11:43:28
local.ingest.cmsStateChangedOn2024-07-15T11:43:25
local.ingest.cmsStateNewLive (veröffentlicht)
local.ingest.cmsStateOldLive Überarbeitung
local.ingest.cmsStateRevisionId194089
local.ingest.leader10182nam a2200000uu 4500
local.ingest.needsManualMetadataChecktrue
local.jointTitlePERSISTENT DEGRADATION PRODUCTS OF HALOGENATED REFRIGERANTS AND BLOWING AGENTS IN THE ENVIRONMENT TYPE ENVIRONMENTAL CONCENTRATIONS AND FATE WITH PARTICULAR REGARD TO NEW HALOGENATED SUBSTITUTES WITH LOW GLOBAL WARMING POTENTIAL
local.newsletter0
local.sourcecatalog
local.sourceenriched with cms, Id: 87444 at 2024-06-18T15:42:29.899709
local.sourceupdated with CMS, Id: 87444 at 2024-10-09T09:21:49.976206
local.source.urihttp://www.umweltbundesamt.de/publikationen/persistent-degradation-products-of-halogenated
local.subject.researchIndicator41
local.subtitletype, environmental concentrations, and fate with particular regard to new halogenated substitutes with low global warming potential : final report
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