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Distribution of polyfluoroalkyl compounds in water, suspended particulate matter and sediment from Tokyo Bay, Japan
Institute for Coastal Research, GKSS Research Centre Geesthacht, Geesthacht, Germany.
National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Japan.
National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Japan; Department of Biology and Chemistry, City University of Hong Kong, Hong Kong Special Administrative Region (HKSAR), China.ORCID-id: 0000-0001-6800-5658
National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Japan.
Vise andre og tillknytning
2010 (engelsk)Inngår i: Chemosphere, ISSN 0045-6535, E-ISSN 1879-1298, Vol. 79, nr 3, s. 266-272Artikkel i tidsskrift (Fagfellevurdert) Published
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Abstract [en]

This study examined the environmental behaviour and fate of polyfluoroalkyl compounds (PFCs) found in water, suspended particulate matter (SPM) and sediment. The sampling of the sediment was performed at two stations from Tokyo Bay, Japan, in 2008. In addition, a depth profile of seawater was collected at three water layers from both sampling stations. The ∑PFC concentrations ranged from 16.7 to 42.3 ng L-1 in the water column, from 6.4 to 15.1 ng g-1 dry weight (dw) in the SPM fraction and from 0.29 to 0.36 dw in surface sediment. The distribution of PFCs was found to depend on their physicochemical characteristics. While short-chain perfluoroalkyl carboxylic acids (PFCAs) (C < 7) were exclusively detected in the dissolved phase, longer-chain PFCAs (C ≥ 7), perfluoroalkyl sulfonates (PFSAs), ethylperfluorooctane sulfonamidoacetic acid (EtFOSAA), and perfluorooctane sulfonamide (PFOSA) appeared to bind more strongly to particles. Results showed that the sorption of PFCs on SPM increases by 0.52-0.75 log units for each additional CF2 moiety and that the sorption of PFSAs was 0.71-0.76 log units higher compared to the PFCA analogs. In addition, the sorption of PFCs was influenced by the organic carbon content. These data are essential for modelling the transport and environmental fate of PFCs.

sted, utgiver, år, opplag, sider
Elsevier, 2010. Vol. 79, nr 3, s. 266-272
Emneord [en]
Partitioning coefficients; PFCs; Polyfluoroalkyl compounds; Sediment; Suspended particulate matter; Water
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Forskningsprogram
Miljövetenskap
Identifikatorer
URN: urn:nbn:se:oru:diva-49983DOI: 10.1016/j.chemosphere.2010.01.045ISI: 000276630800004PubMedID: 20181376Scopus ID: 2-s2.0-77649238536OAI: oai:DiVA.org:oru-49983DiVA, id: diva2:950421
Merknad

Funding Agencies:

German Federal Environmental Foundation

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

Tilgjengelig fra: 2016-07-29 Laget: 2016-04-28 Sist oppdatert: 2018-05-02bibliografisk kontrollert

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

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