Survey of Radiation Concentrations in Domestic Seafoods Distributed in Jeju Island

Following the Fukushima nuclear accident, concerns regarding the radioactive contamination of fishery products have intensified, particularly due to the release of contaminated water from Fukushima since 2023.This study aimed to assess the radioactivity levels in domestic fishery products distributed and sold in Jeju.The radionuclides were analyzed utilizing High Purity Germanium detectors and included the naturally occurring 40 K and artificial radionuclides 134 Cs, 137 Cs, and 131 I.The concentration of 40 K ranged from 47.4 to 533.1 Bq/kg, while 134 Cs, 137 Cs, and 131 I remained undetected, being below the minimum detectable activity levels.Based on these findings, it can be concluded that the radioactivity concentrations in Jeju fishery products remain within safe limits.