Pubblicazione scientifica

Geographical trends of PFAS in cod livers along the Norwegian coast

FILONE TECNOLOGICO	TEMA
economia circolare e sostenibilità	efficientamento energetico e sostenibilità delle operazioni in mare geolocalizzazione sostenibilità dell'ecosistema marino

RIASSUNTO

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.

DATA

Data di pubblicazione: 22/05/2017

AUTORI

VALDERSNES STIG
NILSEN BENTE M
BREIVIK JOAR F
BORGE ASBJORN
MAAGE AMUND

ENTE DI AFFERENZA

NATL INST NUTRITION & SEAFOOD RSCH NIFES NORDNES BERGEN NORWAY
INST MARINE RSCH NORDNES BERGEN NORWAY
UNIV SIENA ITALY

RIVISTA

PLoS ONE, 12(5), e0177947

IMPACT FACTOR

2,870

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