ESTIMATION OF GROUNDWATER EXCHANGE AT CHERNOBYL SITE USING THE DATA OF THE ISOTOPE DATING AND HYDROGEOLOGICAL MODELING

• Datum: 2010
• Hauptverfasser: Bugai, D. A., Fourre, E., Jeancbaptiste, P., Dapoigny, A., Baumier, D., Le Gal La Salle, K., Lancelot, J., Skalskyy, A.S., Van Meir, N.
• Format: Artikel
• Sprache: Russisch
• Veröffentlicht: Institute of Geological Sciences, NAS of Ukraine 2010
• Online Zugang: http://geojournal.igs-nas.org.ua/article/view/216911
• Назва журналу: Geological journal

Studies on estimation of age of groundwater from the unconfined aquifer in sandy Quaternary deposits at the international radioecological experimental site at Chernobyl nuclear power plant site using "tritium — helium-3" (3H-3He) method are presented. Interpretation of the obtained data was carried out using groundwater flow modeling. A good agreement in isotope dating estimates and groundwater modeling data was obtained. Results of these studies suggest that the longCterm (during last 60 years) infiltration recharge rate at the first terrace of the Pripyat River constituted ≈ 200 mm/y. Successful application of 3H-3He method creates preconditions for its more wide application for studies of water exchange and radionuclide migration in groundwater at Chernobyl site.