oru.sePublications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Organic fluorine content in aqueous film forming foams (AFFFs) and biodegradation of the foam component 6: 2 fluorotelomermercaptoalkylamido sulfonate (6: 2 FTSAS)
Department of Chemistry, University of Toronto, Toronto ON, Canada; Department of Environmental Engineering, Helmholtz-Centre for Environmental Research, Leipzig, Germany.
Department of Chemistry, University of Toronto, Toronto ON, Canada.ORCID iD: 0000-0001-6800-5658
Department of Chemistry, University of Toronto, Toronto ON, Canada.
Department of Chemistry, University of Toronto, Toronto ON, Canada.
Show others and affiliations
2013 (English)In: Environmental Chemistry, ISSN 1448-2517, E-ISSN 1449-8979, Vol. 10, no 6, p. 486-493Article in journal (Refereed) Published
Resource type
Text
Abstract [en]

Environmental context Total organofluorine and known fluorosurfactants were quantified in 11 aqueous film forming foams (AFFFs) used to extinguish fires in Ontario, Canada, and one commercial AFFF product. By comparing the concentrations of known fluorosurfactants with the total organofluorine, less than 10% of the fluorosurfactants were identified in half of the samples. Our biodegradation experiment with one of the fluorosurfactants using waste-water treatment plant sludge showed that it was a potential source of perfluoroalkyl carboxylates, which are persistent in the environment. Abstract Eleven aqueous film forming foam (AFFF) samples that were used to extinguish fires in Ontario, Canada, and one commercial product, were analysed using a variety of analytical techniques to obtain structural information and quantities of organofluorine and known perfluoroalkyl and polyfluoroalkyl substances (PFASs). The NMR spectra of the foams distinguished the fluorosurfactants that were synthesised by either electrochemical fluorination or telomerisation. Total organofluorine content was quantified using total organofluorine-combustion ion chromatography (TOF-CIC), which revealed that the samples contained from 475 to 18000gFmL-1. The common AFFF component 6:2 fluorotelomermercaptoalkylamido sulfonate (FTSAS) was quantified by liquid chromatography tandem mass spectrometry (LC-MS/MS) together with perfluoroalkane sulfonates (PFSAs), perfluoroalkyl carboxylates (PFCAs) and fluorotelomer sulfonates (FTSAs); in five samples, 6:2 FTSAS was present in concentrations greater than 1000gmL-1. By comparing the concentrations of these quantifiable fluorochemicals with the total organofluorine content, it was evident that in half of the AFFF samples, less than 10% of the fluorochemicals were identified; in two of the samples, perfluorooctane sulfonate (PFOS) accounted for ∼50% of the total organofluorine content. Our degradation experiment with 6:2 FTSAS using waste-water treatment plant sludge showed that 6:2 FTSAS was a potential source of FTSAs, fluorotelomer alcohols and PFCAs in the environment.

Place, publisher, year, edition, pages
CSIRO Publishing, 2013. Vol. 10, no 6, p. 486-493
National Category
Environmental Sciences Chemical Sciences
Research subject
Enviromental Science; Chemistry
Identifiers
URN: urn:nbn:se:oru:diva-49973DOI: 10.1071/EN13128ISI: 000328650700005Scopus ID: 2-s2.0-84890593120OAI: oai:DiVA.org:oru-49973DiVA, id: diva2:950433
Available from: 2016-07-29 Created: 2016-04-28 Last updated: 2018-05-27Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textScopus

Authority records BETA

Yeung, Leo W. Y.

Search in DiVA

By author/editor
Yeung, Leo W. Y.
In the same journal
Environmental Chemistry
Environmental SciencesChemical Sciences

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 427 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf