BDE-209 was the most prominent example, being almost negligible its presence in liver (0.3%) while accounting for ca.
Whereas most POPs preferentially accumulated in liver, some did the opposite in muscle. Interesting dissimilarities between muscle and liver concentrations were detected, most likely ascribed to distinct toxicokinetics involved for the different pollutants. This, together with the different congener profiles reported for the same species in other geographical areas, highlighted the blue shark's potential as bioindicator of the degree and fingerprints of regional pollution by POPs. In contrast, PBDE loads doubled, likely mirroring the increased environmental presence of these pollutants. Concentrations relatively similar were found for PCBs and PCDD/Fs in comparison with those in Atlantic specimens from the same area sampled in 2015.
In this work contents of PCBs, PCDD/Fs and PBDEs were studied by means of GC-HRMS in muscle and liver of sixty blue sharks from the North East Atlantic sampled in 2019.
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Blue shark score among the most abundant, widely distributed and worldwide consumed elasmobranchs.
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