Transport of perfluoroalkyl acids in a water-saturated sediment column investigated under near-natural conditions
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In: Environmental Pollution, Vol. 186, 01.03.2014, p. 7-13.
Research output: Journal contributions › Journal articles › Research › peer-review
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TY - JOUR
T1 - Transport of perfluoroalkyl acids in a water-saturated sediment column investigated under near-natural conditions
AU - Vierke, L.
AU - Möller, A.
AU - Klitzke, Sondra
PY - 2014/3/1
Y1 - 2014/3/1
N2 - The aim of this study was to gain an understanding of the transport of C4-10 perfluoroalkyl carboxylic acids (PFCAs) and C4,6,8 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 cm3 g-1 to 0.41 cm3 g-1 for C4,6 PFSAs and from 0.0 cm3 g-1 to 6.5 cm3 g-1 for C4,5,6,8,9 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.
AB - The aim of this study was to gain an understanding of the transport of C4-10 perfluoroalkyl carboxylic acids (PFCAs) and C4,6,8 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 cm3 g-1 to 0.41 cm3 g-1 for C4,6 PFSAs and from 0.0 cm3 g-1 to 6.5 cm3 g-1 for C4,5,6,8,9 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.
KW - Sustainability Science
KW - Column study
KW - PFCAs
KW - PFOA
KW - PFSAs
KW - Riverbank filtration
KW - Sediment-water partition coefficient
UR - http://www.scopus.com/inward/record.url?scp=84890513738&partnerID=8YFLogxK
U2 - 10.1016/j.envpol.2013.11.011
DO - 10.1016/j.envpol.2013.11.011
M3 - Journal articles
C2 - 24333660
AN - SCOPUS:84890513738
VL - 186
SP - 7
EP - 13
JO - Environmental Pollution
JF - Environmental Pollution
SN - 0269-7491
ER -