Migration of 137Cs and 90Sr from Chernobyl Fallout in Ukrainian, Belarussian and Russian soils.

N. Lewyckyi, Y. Ivanov, S. E. Levchuk, B. S. Prister, S. K. Firsakova, N. P. Arkhipov, A. N. Arkhipov, S. V. Kruglov

Research outputpeer-review


Studies carried out inside the 30-km restriction zone of the Chernobyl Nuclear Power Plant (ChNPP) and in other contaminated regions of Ukraine, Belarus and Russia have shown that much of the 137Cs and 90Sr deposited by the accident in 1986 has been retained in the superficial layers of the soil and is likely to remain there for a long time. However, in wet organic soils, there has been considerable downward movement. Between 1987 and 1993, laboratory and field experiments were carried out in order to determine the vertical distribution profiles of 137Cs and 90Sr in undisturbed soils at various locations and in various soil types. The data from these experiments were then used to calculate the vertical migration rates of the two radionuclides by two types of model.
Original languageEnglish
JournalJournal of environmental radioactivity
StatePublished - 1997
Externally publishedYes

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