Partitioning of perfluorooctanoate (PFOA), perfluorooctane sulfonate (PFOS) and perfluorooctane sulfonamide (PFOSA) between water and sediment

Lutz Ahrens; Leo W.Y. Yeung; Sachi Taniyasu; Paul K.S. Lam; Nobuyoshi Yamashita

doi:10.1016/j.chemosphere.2011.06.046

Author(s)

Lutz Ahrens
Leo W.Y. Yeung
Sachi Taniyasu
Paul K.S. Lam
Nobuyoshi Yamashita

Detail(s)

Original language	English
Pages (from-to)	731-737
Journal / Publication	Chemosphere
Volume	85
Issue number	5
Publication status	Published - Oct 2011

Link(s)

DOI	DOI https://doi.org/10.1016/j.chemosphere.2011.06.046 Final Published version
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Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-80555126789&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(6fd95c8b-5984-4ff6-bd26-68a2346aa59f).html

Abstract

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. © 2011 Elsevier Ltd.

Research Area(s)

Partitioning, PFCs, PFOA, PFOS, PFOSA, Sediment

Citation Format(s)

[ RIS ] [ BibTeX ]

Partitioning of perfluorooctanoate (PFOA), perfluorooctane sulfonate (PFOS) and perfluorooctane sulfonamide (PFOSA) between water and sediment. / Ahrens, Lutz; Yeung, Leo W.Y.; Taniyasu, Sachi et al.
In: Chemosphere, Vol. 85, No. 5, 10.2011, p. 731-737.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

Ahrens, L, Yeung, LWY, Taniyasu, S, Lam, PKS & Yamashita, N 2011, 'Partitioning of perfluorooctanoate (PFOA), perfluorooctane sulfonate (PFOS) and perfluorooctane sulfonamide (PFOSA) between water and sediment', Chemosphere, vol. 85, no. 5, pp. 731-737. https://doi.org/10.1016/j.chemosphere.2011.06.046

Ahrens, L., Yeung, L. W. Y., Taniyasu, S., Lam, P. K. S., & Yamashita, N. (2011). Partitioning of perfluorooctanoate (PFOA), perfluorooctane sulfonate (PFOS) and perfluorooctane sulfonamide (PFOSA) between water and sediment. Chemosphere, 85(5), 731-737. https://doi.org/10.1016/j.chemosphere.2011.06.046

Ahrens L, Yeung LWY, Taniyasu S, Lam PKS, Yamashita N. Partitioning of perfluorooctanoate (PFOA), perfluorooctane sulfonate (PFOS) and perfluorooctane sulfonamide (PFOSA) between water and sediment. Chemosphere. 2011 Oct;85(5):731-737. doi: 10.1016/j.chemosphere.2011.06.046

Ahrens, Lutz ; Yeung, Leo W.Y. ; Taniyasu, Sachi et al. / Partitioning of perfluorooctanoate (PFOA), perfluorooctane sulfonate (PFOS) and perfluorooctane sulfonamide (PFOSA) between water and sediment. In: Chemosphere. 2011 ; Vol. 85, No. 5. pp. 731-737.