Trace elements in edible tissues of elasmobranchs from the North Aegean Sea (Eastern Mediterranean) and potential risks from consumption
2022
Giovos, Ioannis | Brundo, Maria Violetta | Doumpas, Nikolaos | Kazlari, Zoi | Loukovitis, Dimitrios | Moutopoulos, Dimitrios K. | Spyridopoulou, Roxani Naasan Aga | Papadopoulou, Athina | Papapetrou, Maria | Tiralongo, Francesco | Ferrante, Margherita | Copat, Chiara
Trace elements have the potential to bioaccumulate in marine organisms and to biomagnify towards the upper levels of marine trophic webs, resulting in a range of negative effects on organisms. Elasmobranchs are highly susceptible to bioaccumulation of trace metals, while their consumption by humans is increasing worldwide. Therefore, it is important to monitor the trace metal content in the edible tissues of elasmobranchs. This work reveals the content of 12 trace metals in the edible tissues of 10 elasmobranch species caught in Greek waters. Levels above the permissible limits for Hg and Pb were found in some species, while analysis of the lifetime consumption risk for adults and children using the Target Hazard Quotient (THQ), revealed a high risk for two of the most toxic substances on the priority list for substances, namely As and Hg. These are preliminary results, and further research is required to understand better the issue.
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