Change search
ReferencesLink to record
Permanent link

Direct link
Long-range Transport of Per- and Polyfluorinated Substances to Sweden: The Exposure in Mountain Grazing Reindeers
Örebro University, School of Science and Technology, Örebro University, Sweden.
2016 (English)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

The aim of this study was to examine if perfluorinated alkylated substances (PFASs) reaches north of Sweden by long-range atmospheric transport. This was done by monitoring the levels of PFASs in reindeer livers at two locations in 2002 and 2010, respectively. The reindeers have lived all of their lives in the mountains and therefore the main source of exposure for PFASs is through air. The samples were extracted and analysed for 24 different PFASs using ultra performance liquid chromatography tandem mass spectrometer (UPLC-MS/MS). The most significant change concerns perfluorooctane sulfonic acid (PFOS) which decreased significantly from 6.1 ng/g at the most northern location (Ammarnäs/Biergenis) in 2002 to 0.87 ng/g 2010. At the other sampling location, Glen, PFOS decreased from 5.0 to 3.2 ng/g during the eight years. Mainly PFOS and longer chain carboxylates were found. The results revealed that the levels of many compounds decreased in time. The location seems to have an impact on the level of perfluorinated compounds present and most likely the distribution of them in the air, since certain PFASs have increased and decreased differently in time between the two locations. Since PFASs are non-volatile, they are believed to be degradation products of volatile compounds such as fluorotelomer alcohols (FTOHs) and perfluoroalkylated sulfonamido alcohols (FOSEs). FTOHs and FOSEs are released, translocated by long-range atmospheric transport and degraded to perfluorinated compounds in organisms or atmosphere.

Place, publisher, year, edition, pages
Keyword [en]
PFAAs, PFASs, UPLC-MS/MS, reindeers, long-range transport
National Category
Chemical Sciences
URN: urn:nbn:se:oru:diva-47367OAI: diva2:892150
Subject / course
Available from: 2016-01-08 Created: 2016-01-08 Last updated: 2016-01-08Bibliographically approved

Open Access in DiVA

fulltext(711 kB)34 downloads
File information
File name FULLTEXT01.pdfFile size 711 kBChecksum SHA-512
Type fulltextMimetype application/pdf

By organisation
School of Science and Technology, Örebro University, Sweden
Chemical Sciences

Search outside of DiVA

GoogleGoogle Scholar
Total: 34 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 240 hits
ReferencesLink to record
Permanent link

Direct link