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

Description: Climate-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. Veröffentlicht in Texte | 73/2021.

Types:

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Origin: /Bund/UBA/Webseite

Tags: Weiterverwendung ? Halogeniertes Kältemittel ? Kältemittel ? Trifluoracetat ? Abbauprodukt ? Studie ? Treibhauspotenzial ? Stoff ? Niederschlag ?

License: other-closed

Language: Englisch/English

Organisations

• Umweltbundesamt (Herausgeber*in)

Persons

• Barbara Gschrey (Verfasser*in)
• Dr. David Behringer (Verfasser*in)
• Dr. Felix Heydel (Verfasser*in)
• Dr. Karsten Nödler (Verfasser*in)
• Dr. Stefan Gartiser (Verfasser*in)
• Dr. Stefan Reimann (Verfasser*in)
• Dr. Stephan Henne (Verfasser*in)
• Dr. Sylvie Ludig (Verfasser*in)
• Finnian Freeling (Verfasser*in)
• Ina Rüdenauer (Verfasser*in)
• Kristina Warncke (Verfasser*in)
• Markus Blepp (Verfasser*in)
• Ran Liu (Verfasser*in)
• Steffi Osterheld (Verfasser*in)
• Winfried Schwarz (Verfasser*in)
• Wolfram Jörß (Verfasser*in)

Issued: 2021-05-01

Time ranges: 2021-05-01 - 2021-05-01

Resources

• TFA as degradation product of fluorinated gases (f-gases)

  https://www.umweltbundesamt.de/node/104268 (Webseite)
• https://www.umweltbundesamt.de/sites/default/files/medien/5750/publikationen/2021-05-06_texte_73-2021_persistent_degradation_products.pdf (PDF)

Status

Aktiv

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