Transfer of Chernobyl ¹³⁷Cs and ⁹⁰Sr by surface run-off

¹ SPA "Typhoon", Lenin Av. 82, 249020 Obninsk, Kaluga Region, Russia
² IPSN/DPRE/SERLAB, CE Cadarache, BP. 159, 13108 Saint-Paul-lez-Durance cedex, France
³ Ukrainian Hydrometeorological Institute, Nauka Av. 37, 251028 Kiev, Ukraine
⁴ Republican Centre of Radiation Control and Environment Monitoring, 110a F. Scoryna Av., 220023 Minsk, Belarus

Abstract

Presented are results of Subproject 3c of the Project 2 "Radioecology" of Franco-German Initiative on Chernobyl aiming at creating of database on radionuclide transfer by surface runoff in heavily contaminated areas of Belarus, Russia and Ukraine after the Chernobyl accident. Detailed information about 65 experiments on runoff plots in 30-km zone is collected. Data on general characteristics of contaminated watersheds and characteristics of their contamination, data on radionuclide concentrations in 17 small rivers and 5 large rivers together with hydrochemical characteristics are included in database. The database provides an opportunity for development of specific scenarios for model testing and validation, calculation of key characteristics of radionuclide wash-off from contaminated watersheds, increased understanding of contaminant transport at the process level, and development and use of methods for estimation of key parameters.