L. M. Peremyslova*, N. G. Safronova*, V. A. Baturin*, M. V. Ivanitskaya**, and V. I. Afonin**
*Ural Research Center of Applied Radiation Medicine, Medgorodok, Chelyabinsk, 454076 Russia
**Hydrometeorology and Environmental Monitoring Center, ul. Vitebskaya 15, Chelyabinsk, 454080 Russia
Received February 16, 1998
Abstract—The level of radioactive contamination and the distribution of radionuclides in the soil were studied
in the Karabolka River floodplain, which was contaminated because of horizontal radionuclide migration from
the Eastern Ural Radioactive Trace and wind transfer from the banks of an industrial waste reservoir. The
amount of 90Sr transported by the Karabolka River into the Sinara River was calculated for the entire period
since the beginning of contamination.
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