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Partitioning of perfluorooctanoate (PFOA), perfluorooctane sulfonate (PFOS) and perfluorooctane sulfonamide (PFOSA) between water and sediment
Centre for Materials and Coastal Research, Institute of Coastal Research, Department for Environmental Chemistry, Helmholtz-Zentrum Geesthacht, Geesthacht, Germany.
Department of Biology and Chemistry, City University of Hong Kong, Hong Kong, China.ORCID iD: 0000-0001-6800-5658
National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Japan.
Department of Biology and Chemistry, City University of Hong Kong, Hong Kong.ORCID iD: 0000-0002-2134-3710
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2011 (English)In: Chemosphere, ISSN 0045-6535, E-ISSN 1879-1298, Vol. 85, no 5, p. 731-737Article in journal (Refereed) Published
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Abstract [en]

Laboratory partitioning experiments were conducted to elucidate the sorption behaviour and partitioning of perfluoroalkyl compounds (PFCs). Three different sediment types were used and separately spiked with perfluorooctanoate (PFOA), perfluorooctane sulfonate (PFOS) and perfluorooctane sulfonamide (PFOSA) at low environmentally realistic concentrations. PFOA, PFOS and PFOSA were mainly distributed in the dissolved phase at low suspended solid concentrations, indicating their long-range transport potential in the marine environment. In all cases, the equilibrium isotherms were linear and the organic carbon normalised partition coefficients (K OC) decreased in the following order: PFOSA (log K OC=4.1±0.35cm 3g -1)>PFOS (3.7±0.56cm 3g -1)>PFOA (2.4±0.12cm 3g -1). The level of organic content had a significant influence on the partitioning. For the sediment with negligible organic content the density of the sediment became the most important factor influencing the partitioning. Ultimately, data on the partitioning of PFCs between aqueous media and suspended solids are essential for modelling their transport and environmental fate.

Place, publisher, year, edition, pages
Elsevier, 2011. Vol. 85, no 5, p. 731-737
Keywords [en]
Partitioning; PFCs; PFOA; PFOS; PFOSA; Sediment
National Category
Environmental Sciences
Research subject
Enviromental Science
Identifiers
URN: urn:nbn:se:oru:diva-49976DOI: 10.1016/j.chemosphere.2011.06.046ISI: 000297959600005PubMedID: 21742366Scopus ID: 2-s2.0-80555126789OAI: oai:DiVA.org:oru-49976DiVA, id: diva2:950428
Note

Funding Agencies:

German Federal Environmental Foundation

International Bureau from the Federal Ministry of Education and Research JPN 08/A02

University Grants Committee of the Hong Kong Special Administrative Region, China AoE/P-04/2004

Available from: 2016-07-29 Created: 2016-04-28 Last updated: 2018-08-29Bibliographically approved

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Yeung, Leo W. Y.Lam, Paul K. S.

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