NUMERICAL SIMULATION OF MIGRATION OF RADIONUCLIDES IN
SOIL AFTER RADIOACTIVE FALLOUT

N. A. Kudryashov and I. K. Alekseeva

UDC 532.546

The authors consider migration of radionuclides in 
soil with moisture transfer taken into consideration. It is assumed 
that in their motion the radionuclides can be adsorbed in accordance 
with Henry's nonequilibrium law. A numerical procedure is suggested 
for solution of the problem. Results of mathematical simulation of 
migration of the radionuclides are presented and can be used to predict 
soil contamination.