Occurrence of perfluorooctane sulfonate (PFOS) and other perfluorinated alkylated substances in harbour porpoises from the Black Sea
Van de Vijver, K.I.; Holsbeek, L.; Das, K.; Joiris, C.; De Coen, W.M. (2006). Occurrence of perfluorooctane sulfonate (PFOS) and other perfluorinated alkylated substances in harbour porpoises from the Black Sea, in: Van de Vijver, K.I. Blootstelling en effectevaluatie van perfluorverbindingen op mariene en estuariene organismen = Exposure and effect assessment of perfluorinated alkylated substances in marine and estuarine organisms. pp. 129-147 In: Van de Vijver, K.I. (2006). Blootstelling en effectevaluatie van perfluorverbindingen op mariene en estuariene organismen = Exposure and effect assessment of perfluorinated alkylated substances in marine and estuarine organisms. PhD Thesis. Universiteit Antwerpen: Antwerpen. 206 pp., more |
| Keywords | Anatomical structures > Body organs > Animal organs > Excretory organs > Kidneys
Anatomical structures > Nervous system > Central nervous system > Brain
Biological phenomena > Accumulation > Bioaccumulation
Chemical compounds > Organic compounds > Hydrocarbons > Halogenated hydrocarbons > Fluorinated hydrocarbons
Secretory organs > Glands > Exocrine glands > Digestive system > Digestive glands > Liver
Tissues
Phocoena phocoena (Linnaeus, 1758) [WoRMS]
MED, Black Sea [Marine Regions]; MED, Ukraine [Marine Regions]
Marine/Coastal |
| Abstract | Perfluorinated sulfonate (PFOS) and other perfluorinated alkylated substances (PFAS) were determined in liver, kidney, muscle, brain and blubber samples of 31 harbour porpoises (Phocoena phocoena relicta) of different age and sex stranded along the Ukrainian coast of the Black Sea. In all individuals and in all tissues, PFOS was the predominant perfluorinated alkylated substance, accounting for on average 90% of the measured PFAS load. However, concentrations of perfluorooctane sulfonate (PFOS) remain low compared to other regions like the North Sea and Baltic area. PFOS concentrations were the highest in liver (327 ± 351 ng/g wet wt) and kidney (147 ± 262 ng/g wet wt) tissue, and lower in blubber (18 ± 8 ng/g wet wt), muscle (41 ± 50 ng/g wet wt) and brain (24 ± 23 ng/g wet wt). To our knowledge, this is one of the first studies which measured PFOS in brain tissue in marine mammals from the field. No significant differences could be determined between males and females, nor between juvenile and adult animals (p>0.05). PFNA, PFDA, PFUA and PFDoA could be detected in liver tissue of approximately 25% of the individuals. PFBS, PFBA and PFOA were not detected in any of the porpoise livers. |
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