Articles | Volume 25, issue 23
https://doi.org/10.5194/acp-25-18157-2025
https://doi.org/10.5194/acp-25-18157-2025
Research article
 | 
16 Dec 2025
Research article |  | 16 Dec 2025

Trifluoroacetate (TFA) in precipitation and surface waters in Switzerland: trends, source attribution, and budget

Stephan Henne, Florian R. Storck, Henry Wöhrnschimmel, Markus Leuenberger, Martin K. Vollmer, and Stefan Reimann

Data sets

Observations and Atmospheric Simulations of Trifluoroacetate (TFA) in Precipitation and Surface Waters in Switzerland Stephan Henne et al. https://doi.org/10.5281/zenodo.17220023

Model code and software

FLEXPART IFS 9.2 Empa - TFA 1.0: Atmospheric Lagrangian Particle Dispersion Model for regional to global HFO to TFA degradation Stephan Henne https://doi.org/10.5281/zenodo.17316291

Download
Short summary
We observed the persistent, man-made trifluoroacetate (TFA) in precipitation and surface waters. Atmospheric simulations attributed TFA to precursor gases in the atmosphere. Although recently increasing concentrations could be followed, gaps in the budget indicate limited understanding of the atmospheric degradation of widely used fluorocarbons. Without additional regulation, environmental TFA concentrations are expected to rise strongly, necessitating continued monitoring and risk assessment.
Share
Altmetrics
Final-revised paper
Preprint