Fluorochemicals biodegradation as a potential source of trifluoroacetic acid (TFA) to the environment.
Biodegradation
Contribution
Fluorochemicals
Trifluoroacetic acid
Journal
Chemosphere
ISSN: 1879-1298
Titre abrégé: Chemosphere
Pays: England
ID NLM: 0320657
Informations de publication
Date de publication:
Sep 2020
Sep 2020
Historique:
received:
10
03
2020
revised:
23
04
2020
accepted:
23
04
2020
entrez:
22
9
2020
pubmed:
23
9
2020
medline:
3
10
2020
Statut:
ppublish
Résumé
The anthropogenic release of trifluoroacetic acid (TFA) into the environmental media is not limited to photochemical oxidation of CFC alternatives and industrial emissions. Biological degradation of some fluorochemicals is expected to be a potential TFA source. For the first time, we assess if the potential precursors [6:2 fluorotelomer alcohol (6:2 FTOH), 4:2 fluorotelomer alcohol (4:2 FTOH), acrinathrin, trifluralin, and 2-(trifluoromethyl)acrylic acid (TFMAA)] can be biologically degraded to TFA. Results show that 6:2 FTOH was terminally transformed to 5:3 polyfluorinated acid (5:3 FTCA; 12.5 mol%), perfluorohexanoic acid (PFHxA; 2.0 mol%), perfluoropentanoic acid (PFPeA; 1.6 mol%), perfluorobutyric acid (PFBA; 1.7 mol%), and TFA (2.3 mol%) by day 32 in the landfill soil microbial culture system. 4:2 FTOH could remove multiple -CF
Identifiants
pubmed: 32957292
pii: S0045-6535(20)31087-0
doi: 10.1016/j.chemosphere.2020.126894
pii:
doi:
Substances chimiques
Fluorocarbons
0
Soil
0
Soil Pollutants
0
Trifluoroacetic Acid
E5R8Z4G708
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
126894Informations de copyright
Copyright © 2020 Elsevier Ltd. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.