Distribution of uranium isotopes, 210Pb and 210Po in groundwaters of Crete- GreeceDistribution of uranium isotopes, 210Pb and 210Po in groundwaters of Crete- Greece Peer-Reviewed Journal Publication Δημοσίευση σε Περιοδικό με Κριτές 2024-02-092022enA research on 238U, 234U, 210Pb, and 210Po of groundwaters in Crete island in southern Greece, was carried out. A wide range of activities was observed. The 234U/238U and 210Po/210Pb activity ratios demonstrated the disequilibrium between the specific radionuclides. Uranium isotopes were separated by anion exchange and electroplated on stainless steel plates. 210Po was spontaneously deposited on nickel plates. 210Pb was indirectly determined through the ingrowth of polonium after the first spontaneous deposition. The measurements were performed by alpha-particle spectrometry. The determined activities were much lower than the reference values established by the E.U. and the W.H.O. for drinking water.http://creativecommons.org/licenses/by/4.0/Journal of Radioanalytical and Nuclear Chemistry331114685–4694 Xarchoulakos Dimitrios C. Manoutsoglou Emmanouil Μανουτσογλου Εμμανουηλ Kallithrakas-Kontos Nikolaos Καλλιθρακας-Κοντος Νικολαος Springer Nature 234U/238U 210Po/ 210Pb Groundwaters Crete Alpha spectrometry