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Tissue Distribution of Perfluorinated Surfactants in Common Guillemot (Uria aalge) from the Baltic Sea
Stockholm University, Faculty of Science, Department of Applied Environmental Science (ITM).
Stockholm University, Faculty of Science, Department of Applied Environmental Science (ITM).
2008 (English)In: Environmental Science and Technology, ISSN 0013-936X, Vol. 42, no 16, 5879-5884 p.Article in journal (Refereed) Published
Abstract [en]

Perfluorinated alkyl surfactants (PFAS) were investigated in tissues and organs of the common guillemot (Uria aalge) from the Baltic Sea. Concentrations of 11 perfluorinated carboxylates, four perfluorinated sulfonates, and perfluorooctane sulfonamide were determined in egg, liver, kidney, and muscle of adult guillemot, as well as in liver from chicks, all sampled in 1989. Additionally, whole herring homogenates from 2005 were analyzed, herring comprising a large part of guillemot’s diet. Quantifiable concentrations of PFAS were found in all samples. Perfluorooctane sulfonate (PFOS) was predominant, followed by perfluorotridecanoate (PFTriDA) and perfluoroundecanoate (PFUnDA). The median concentration of PFOS was highest in eggs (325 ng/g wet weight (w wt)) followed by chick liver (309 ng/g w wt), kidney (127 ng/g w wt), adult liver (121 ng/g w wt), and muscle (14 ng/g w wt). Comparatively low levels of PFOS were found in herring, leaving a blurred picture of uptake routes. PFAS concentrations in livers of male and female guillemots did not differ significantly. Some PFAS showed higher concentrations in eggs than in female livers. The ratio of levels in egg/female liver, indicating mother-to-egg transfer capacity, increased with increasing PFAS chain length. PFOS showed a higher tendency for transfer than carboxylates of carbon chain lengths C9−C13.

Place, publisher, year, edition, pages
2008. Vol. 42, no 16, 5879-5884 p.
URN: urn:nbn:se:su:diva-18923DOI: 10.1021/es800529hISI: 000258439600010OAI: diva2:185446
Available from: 2009-02-17 Created: 2009-02-17 Last updated: 2010-01-08Bibliographically approved
In thesis
1. Analysis of Perfluoroalkyl Acids in Swedish Biota : Temporal trends, tissue distribution and toxicity
Open this publication in new window or tab >>Analysis of Perfluoroalkyl Acids in Swedish Biota : Temporal trends, tissue distribution and toxicity
2010 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Perfluorinated alkyl acids (PFAS) are ubiquitous environmental contaminants. They are found in high concentrations in top predators worldwide, with perfluorooctane sulfonate (PFOS) as the predominant compound. Due to concerns regarding toxicity and persistence of PFOS, this compound was included in the Stockholm convention of persistent organic pollutants in 2009.

PFAS differ from other persistent organic pollutants in their physicochemical properties and as a result their environmental fate is insufficiently understood. The focus of this thesis was to learn more on the environmental fate of PFAS by analysis of 15 different PFAS in Swedish biota. Analytes included perfluorinated carboxylates (PFCAs; carbon chain lengths C6-C15), perfluorinated sulfonates (PFSAs; C4, C6, C8, C10), and perfluorooctane sulfonamide (PFOSA).

Elevated concentrations of PFAS were found in the marine, terrestrial and limnic Swedish environment, exemplified by Baltic common guillemot (Uria aalge), peregrine falcon (Falco peregrinus), and the amphipod Monoporeia affinis. PFOS was the predominant PFAS in the species. Analysis of archived material showed that PFOS concentration had increased 30-fold in guillemot eggs since 1968. PFOS concentration in peregrine falcon eggs had increased from 1974 to the mid 1980s and then leveled off, while PFCA in the falcon eggs showed an exponential increase until recent years. The relation between PFAS concentrations in egg and in tissue from adult guillemot showed that PFAS had different potentials for transfer to the egg, depending on chain length and functional group.

The toxicological implications of PFAS pollution in the Swedish environment are not known but the high concentrations of PFOS in the Baltic guillemot eggs are of concern. Recent toxicological studies show toxic effects of PFOS in concentrations close to, or below the concentrations reported in this thesis. The margins of safety seem to be higher for the PFCAs, although toxicity data are scarce.

Place, publisher, year, edition, pages
Stockholm: Department of Applied Environmental Science (ITM), Stockholm University, 2010. 43 p.
Environmental chemistry, PFOS, PFAS, pollutant, Baltic guillemot, peregrine falcon, Monoporeia affinis, time trend, toxicity
National Category
Environmental Sciences Environmental Sciences
Research subject
Applied Environmental Science
urn:nbn:se:su:diva-34181 (URN)978-91-7155-998-2 (ISBN)
Public defence
2010-02-19, Nordenskiöldsalen, Geovetenskapens hus, Svante Arrhenius väg 12, Stockholm, 10:00 (English)
At the time of the doctoral defense, the following papers were unpublished and had a status as follows: Paper 3: Manuscript. Paper 4: Manuscript. Available from: 2010-01-28 Created: 2010-01-07 Last updated: 2010-04-08Bibliographically approved

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