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HERO ID
3859275
Reference Type
Journal Article
Title
Aerobic biodegradation of 2 fluorotelomer sulfonamide-based aqueous film-forming foam components produces perfluoroalkyl carboxylates
Author(s)
D'Agostino, LA; Mabury, SA
Year
2017
Is Peer Reviewed?
Yes
Journal
Environmental Toxicology and Chemistry
ISSN:
0730-7268
EISSN:
1552-8618
Volume
36
Issue
8
Page Numbers
2012-2021
Language
English
PMID
28145584
DOI
10.1002/etc.3750
Web of Science Id
WOS:000406398400009
Abstract
The biodegradation of 2 common fluorotelomer surfactants used in aqueous film forming foams (AFFFs), 6:2 fluorotelomer sulfonamide alkylamine (FTAA) and 6:2 fluorotelomer sulfonamide alkylbetaine (FTAB), was investigated over 109 d with aerobic wastewater-treatment plant (WWTP) sludge. Results show that biodegradation of 6:2 FTAA and 6:2 FTAB produces 6:2 fluorotelomer alcohol (FTOH), 6:2 fluorotelomer carboxylic acid (FTCA), 6:2 fluorotelomer unsaturated carboxylic acid (FTUCA), 5:3 FTCA, and short-chain perfluoroalkyl carboxylates (PFCAs). Additional degradation products included 6:2 fluorotelomer sulfonamide (FTSAm), which was a major degradation product in the presence of either active or sterilized sludge, whereas 6:2 fluorotelomer sulfonate (FTSA) production was measured with sterilized sludge only. Six additional degradation products were tentatively identified by quadrupole time-of-flight mass spectrometry (qTOF-MS) and attributed to N-dealkylation and oxidation of 6:2 FTAA. Environ Toxicol Chem 2017;9999:1-10. © 2017 SETAC.
Keywords
Aerobic biodegradation; Perfluoroalkyl substance; Contaminant of emerging concern; Aqueous film-forming foam
Tags
PFAS
•
5:3 acid
Literature Search
Pubmed
Screening Results
Excluded/Not on Topic
•
Additional PFAS (formerly XAgency)
Literature Search November 2019
PubMed
ToxNet
Not prioritized for screening
2-Perfluorooctyl ethanoic acid
•
Expanded PFAS SEM (formerly PFAS 430)
Litsearch: September 2019
PubMed
Not prioritized for screening
3:2 Fluorotelomer alcohol
2H-Perfluoro-2-octenoic acid (6:2)
2-(Perfluorohexyl)ethanoic acid
•
FtOH 6:2
Screening Results
Excluded/Not on Topic
•
^Per- and Polyfluoroalkyl Substances (PFAS)
FtS 6:2 (27619-97-2)
Literature Search
Pubmed
FtOH 6:2 (647-42-7)
Literature Search
Pubmed
5:3 acid (914637-49-3)
Literature Search
Pubmed
•
PFAS Universe
Data Source
Web of Science
Pubmed
2-(Perfluorohexyl)ethanoic acid
2-(Perfluorohexyl)ethanol
2H,2H,3H,3H-Perfluorooctanoic acid
2H-Perfluoro-2-octenoic acid (6:2)
•
PFNA
Litsearch Update 2017-2018
Pubmed
Toxline
Literature Search
Pubmed
Toxline
PFNA May 2019 Update
Toxnet
Title and Abstract Screening
Excluded
Not relevant to PECO
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