Change search
ReferencesLink to record
Permanent link

Direct link
The fate of per- and polyfluoroalkyl substances within a melting snowpack of a boreal forest
Show others and affiliations
2014 (English)In: Environmental Pollution, ISSN 0269-7491, E-ISSN 1873-6424, Vol. 191, 190-198 p.Article in journal (Refereed) Published
Abstract [en]

Per- and polyfluoroallcyl substances (PFAS) were measured systematically in a snowpack in northern Sweden to determine chemical behaviour during seasonal melt. Average PFAS concentrations were generally low, but displayed a wide range with median (range) concentrations of PFOA and PFOS of 66.5 pg L-1 (ND-122) and 20.5 pg L-1 (2.60-253) respectively. Average concentrations of the shorter chain, C4 and C5 perfluoroalkyl carboxylates (PFCAs) and perfluoroalkyl sulfonates (PFSAs), were similar to 10-fold higher. Differences in the PFAS concentrations and profile were observed between surface snow and deeper layers, with evidence of PFAS migration to deeper snow layers as melt progressed. Chemical loads (ng m(-2)) for C4-9 PFCAs decreased gradually as melt progressed, but increased for C-4, C6-8 PFSAs and the longer chain C10-12 PFCAs. This enrichment in the diminishing snowpack is an unusual phenomenon that will affect PFAS elution with meltwater and subsequent entry to catchment surface waters. (C) 2014 Elsevier Ltd. All rights reserved.

Place, publisher, year, edition, pages
2014. Vol. 191, 190-198 p.
Keyword [en]
Per- and polyfluoroalkyl substances (PFASs), Perfluorooctane sulfonate (PFOS), Snow, Fate, Atmospheric deposition
National Category
Environmental Sciences Ecology
URN: urn:nbn:se:umu:diva-91742DOI: 10.1016/j.envpol.2014.04.032ISI: 000338605200025OAI: diva2:739161
Available from: 2014-08-20 Created: 2014-08-15 Last updated: 2014-08-20Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Bergknut, Magnus
By organisation
Department of Chemistry
In the same journal
Environmental Pollution
Environmental SciencesEcology

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 72 hits
ReferencesLink to record
Permanent link

Direct link