PREDICTION OF MIGRATION OF RADIONUCLIDES
IN THE IPUT RIVER BASIN 
O. M. Zhukovaa, N. M. Shiryaevab,
N. K. Myshkinab, V. V. Denisovab,
and V. V. Skuratb

UDC 504.453.054

Based on the multichamber model, prediction evaluations 
of the transfer of 137Cs and 90Sr in the Iput river 
for 100 years after the Chernobyl accident have been performed. In 
the course of investigation, the indicated time range was subdivided 
into three periods: the first period covered April-December of 
1986 (retrospective evaluation), the second period embraced the years 
1987-2000, and the third period covered the years 2000-2080 
(long-term prediction). The prediction evaluations of migration of 
radioactive contaminants in the Iput river have shown that over the 
course of a century the concentrations of 137Cs in the Iput 
river network will decrease nearly 3000 times and the concentrations 
of 90Sr will decrease 10,000 times. However the levels of 
contamination of the river systems by these radionuclides will remain 
rather high.

aRepublic Center of Radiation Control and Monitoring 
of the Natural Environment, State Committee for Hydrometeorology of 
the Republic of Belarus, Minsk, Belarus; email: us206@fax.by.mecom.ru; 
bInstitute of Radioenvironmental Problems, National Academy 
of Sciences of Belarus, Minsk, Belarus; email: irep@sosny.bas-net.by. 
Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 75, No. 1, 
pp. 191-199, January-February, 2002. Original article submitted 
January 16, 2001.

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