The radiological evaluation of uranium, radium and radon in metallic and thermo-metallic springs in Ikaria Island, the eastern Aegean Sea, Greece

摘要: Abstract The natural alpha and gamma-emitters 238 U, 226 Ra 222 Rn were analysed in geothermal springs on Ikaria Island situated the eastern Aegean Sea. obtained results evaluated relation to radiological regime of wider area. exposure dose rates a network surrounding island, committed effective doses human population due potable spring water are also reported. Although, measured concentrations fall range values reported literature, general, they higher if compared other Greek regions. Elevated Ra, found occasionally, whereas evaporation during treatment procedures spa installations have resulted U enrichment. Higher observed hot springs. As materials present elevated considered radionuclides, metallic thermo-metallic influence ambient areas, acting as radionuclide carriers. In terms risk, humans might suffer limited from internal alpha-radiation systematic consumption, concentration uranium one ecotoxicity was above protective boundary level with regard predicted no-effect (PNEC) set for protection aquatic biota.