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Fluorinated alkyl compounds including long chain carboxylic acids in wild bird livers from Japan
Safety Research Team, National Institute of Animal Health, National Agriculture and Food Research Organization, Kannondai 3-1-5, Tsukuba, Ibaraki, Japan.
National Institute of Advanced Industrial Science and Technology, Onogawa 16-1, Tsukuba, Ibaraki, Japan.ORCID iD: 0000-0001-6800-5658
National Institute of Advanced Industrial Science and Technology, Onogawa 16-1, Tsukuba, Ibaraki, Japan.ORCID iD: 0000-0002-7112-9974
National Institute of Advanced Industrial Science and Technology, Onogawa 16-1, Tsukuba, Ibaraki, Japan.
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2011 (English)In: Chemosphere, ISSN 0045-6535, E-ISSN 1879-1298, Vol. 83, no 3, 379-384 p.Article in journal (Refereed) Published
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Abstract [en]

A wide range of fluorinated alkyl compounds (FACs) has been reported in wildlife in various locations in the world. However, such information regarding Japanese wildlife is rarely found. In the present study, we investigated the occurrence of 21 FACs, including perfluorinated alkyl sulfonates (PFASs), perfluorinated carboxylates (PFCAs), and fluorotelomer acids, in the livers of 10 wild bird species from two regions in northern Japan. To avoid interferences, FACs were quantified by a recently developed method using acetonitrile and solid-phase extraction followed by an ion exchange HPLC column separation. Apart from perfluorooctane sulfonate (PFOS), which was found at the highest levels of all the compounds detected, several long chain perfluorinated carboxylates (PFCAs) from C8 to C16, particularly perfluorotetradecanoic acid (PFTeDA) and perfluorohexadecanoic acid (PFHxDA), were detected for the first time. Additionally, 7:3 FTCA, a fluorotelomer acid, was also detected in most swan livers from Miyagi prefecture and all the birds from Tochigi prefecture. However, none of the sulfonamides and unsaturated telomer acids were detected in any species. Swans seem to be the least exposed wild birds to FACs among the investigated birds, signifying that feeding habits may reflect FAC accumulation in wild birds. The highest total concentration of detected FACs was 405ngg-1wet wt., which was found in a Japanese sparrowhawk, indicating that the top predatory wild birds can accumulate several long chain carboxylic acids. However, the current FAC concentrations found in livers may suggest that these compounds alone would not cause a severe toxic effect in these species.

Place, publisher, year, edition, pages
Elsevier, 2011. Vol. 83, no 3, 379-384 p.
Keyword [en]
7:3 FTCA; Fluorinated alkyl compounds; PFOS; Swan; Wild birds
National Category
Environmental Sciences
Research subject
Enviromental Science
Identifiers
URN: urn:nbn:se:oru:diva-49979DOI: 10.1016/j.chemosphere.2010.12.010ISI: 000289184100021PubMedID: 21190717Scopus ID: 2-s2.0-79952454945OAI: oai:DiVA.org:oru-49979DiVA: diva2:950424
Available from: 2016-07-29 Created: 2016-04-28 Last updated: 2017-10-17Bibliographically approved

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