Fluorochemicals biodegradation as a potential source of trifluoroacetic acid (TFA) to the environment.


Journal

Chemosphere
ISSN: 1879-1298
Titre abrégé: Chemosphere
Pays: England
ID NLM: 0320657

Informations de publication

Date de publication:
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

126894

Informations 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.

Auteurs

Mei Sun (M)

State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, China.

Jia'nan Cui (J)

State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, China.

Junyu Guo (J)

State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, China. Electronic address: jyguo16@pku.edu.cn.

Zihan Zhai (Z)

State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, China; Land Consolidation and Rehabilitation Center, The Ministry of Land and Resources, Beijing, 100035, China.

Peng Zuo (P)

State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, China.

Jianbo Zhang (J)

State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, China. Electronic address: jbzhang@pku.edu.cn.

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Classifications MeSH