Environmental Pollution, March, 2014, Vol.186, p.7(7)
To link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.envpol.2013.11.011 Byline: Lena Vierke, Axel Moller, Sondra Klitzke Abstract: The aim of this study was to gain an understanding of the transport of C.sub.4-10 perfluoroalkyl carboxylic acids (PFCAs) and C.sub.4,6,8 perfluoroalkyl sulfonic acids (PFSAs) in a water-saturated sediment column representing a riverbank filtration scenario under near-natural conditions. Short-chain PFCAs and PFSAs with up to six C-atoms showed complete tracer-like breakthrough. Longer chain ones were retarded due to sorption to the sediment or due to other processes in the aqueous phase. The study reports the first column derived sediment-water partition coefficients ranging from 0.01 cm.sup.3 g.sup.-1 to 0.41 cm.sup.3 g.sup.-1 for C.sub.4,6 PFSAs and from 0.0 cm.sup.3 g.sup.-1 to 6.5 cm.sup.3 g.sup.-1 for C.sub.4,5,6,8,9 PFCAs. The results clearly indicate that short-chain PFCAs and PFSAs may pose a problem if contaminated surface waters are used for drinking water production via riverbank filtration. Author Affiliation: (a) Federal Environment Agency, Worlitzer Platz 1, 06844 Dessau-Ro[sz]lau, Germany (b) Leuphana University of Luneburg, Scharnhorststr. 1, 21335 Luneburg, Germany (c) Helmholtz-Zentrum Geesthacht, Max-Planck Str. 1, 21502 Geesthacht, Germany (d) Federal Environment Agency, Schichauweg 58, 12307 Berlin, Germany Article History: Received 23 May 2013; Revised 14 October 2013; Accepted 15 November 2013
Sulfonic Acids -- Investigations ; Water -- Investigations ; Tracers (Biology) -- Investigations ; Sediments (Geology) -- Investigations
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