210Po and 210Pb in fish from northern Aegean Sea and radiation dose to fish consumers.

This paper presents the activity concentrations of ²¹⁰Po and ²¹⁰Pb in 15 different commercial fish species collected around Gökçeada Island (northern Aegean Sea) in 2016. The distribution of ²¹⁰Po and ²¹⁰Pb was investigated in fish tissues and significant differences (P < 0.05) in radionuclide concentrations were noted between muscle, gills, and liver in each species. ²¹⁰Po activity concentrations in tissues were systematically higher than those of ²¹⁰Pb and the average values of ²¹⁰Po/²¹⁰Pb concentration ratios were calculated at 6.6 ± 1.5, 8.4 ± 3.2, and 10.2 ± 1.6 in muscle, gills, and liver, respectively. The annual effective dose to consumers through ²¹⁰Po ingestion with fish filet averaged 62 µSv year⁻¹ (range 5.5-160 µSv year⁻¹). This effective dose is in the range of natural radiation doses reported worldwide for humans through ingestion of sea food. [ABSTRACT FROM AUTHOR]