Radiation dose assessment for137Cs from fish in the Aegean Sea before and after the Chernobyl accident

The effective doses from fish in the Aegean Sea have been calculated for the nuclide¹³⁷Cs covering the period 1975–1982. The effective dose varies between 3×10^–5 and 10×10^–5 mSv y^–1 for adults and 14×10^–5 to 56×10^–5 mSv y^–1 for children, while the cumulative effective dose for the period 1975–1982 equals to 40.86×10^–5 and 229.57×10^–5 for both adults and children of 10 y old, respectively. When compared to doses derived from the Chernobyl accident /May 1986/ it was found that the additional dose incurred by Greek individuals in May 1986 was approximately equal to the cumulative dose of 8 y contribution period /1975–1982/ for adults and to a year's contribution for children of 10 y old.