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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
Vise andre og tillknytning
2011 (engelsk)Inngår i: Chemosphere, ISSN 0045-6535, E-ISSN 1879-1298, Vol. 85, nr 5, s. 731-737Artikkel i tidsskrift (Fagfellevurdert) Published
Resurstyp
Text
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.

sted, utgiver, år, opplag, sider
Elsevier, 2011. Vol. 85, nr 5, s. 731-737
Emneord [en]
Partitioning; PFCs; PFOA; PFOS; PFOSA; Sediment
HSV kategori
Forskningsprogram
Miljövetenskap
Identifikatorer
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
Merknad

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

Tilgjengelig fra: 2016-07-29 Laget: 2016-04-28 Sist oppdatert: 2018-08-29bibliografisk kontrollert

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