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 -