Geographical trends of PFAS in cod livers along the Norwegian coast.

https://arctichealth.org/en/permalink/ahliterature282740
Source
PLoS One. 2017;12(5):e0177947
Publication Type
Article
Date
2017
Author
Stig Valdersnes
Bente M Nilsen
Joar F Breivik
Asbjørn Borge
Amund Maage
Source
PLoS One. 2017;12(5):e0177947
Date
2017
Language
English
Publication Type
Article
Abstract
The level of perfluorinated alkyl substances (PFAS) was determined in North East Arctic cod (Gadus morhua) liver samples from 15 Norwegian fjords and harbors. Five harbors in the eastern part of Norway, six harbors in the western part and four harbours in the northern part. A total of 200 samples were analyzed for 16 PFAS. Determination of PFAS were carried out by LC-MS/MS following sample clean up by solid phase extraction and ultracentrifugation. The predominating PFAS was PFOS, which was found to be higher than the level of quantification (1.5 µg kg-1 wet weight) in 72% of the samples. The highest level of PFOS found was 21.8 µg kg-1 wet weight in a sample from Kragerø in the eastern part of Norway. A significantly higher level of PFOS was found in the eastern fjords and harbors compared to fjords and harbors in the western and northern part of Norway. Within the northern fjords and harbors elevated PFOS levels were found in Narvik, which may indicate a local source there. Variations in PFOS of the cod livers thus reflect differences in levels of pollution between the areas.
PubMed ID
28531177 View in PubMed
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