Movement of radionuclides in terrestrial ecosystems by physical processes.
Physical processes that effect the movement of radionuclides in the temperate environments post-deposition are considered in this paper. The physical processes considered include the interception of radionuclides by vegetation, resuspension, and vertical migration in soil. United States and Russian results on the interception of radionuclides are reviewed and defined in terms of models that are currently undergoing evaluation and revision. New results on resuspension are evaluated, and a preliminary new model for the time-dependent resuspension factor is proposed. Chernobyl-related results on the movement of radionuclides into the soil column are presented, as is a revised model for this process based upon recent results from Ukraine.
Anspaugh
Lynn R
LR
Department of Radiology, University of Utah, Salt Lake City 84108, USA. LAnspaugh@aol.com
Simon
Steven L
SL
Gordeev
Konstantin I
KI
Likhtarev
Ilya A
IA
Maxwell
Reed M
RM
Shinkarev
Sergei M
SM
D017753:Ecosystem; D004777:Environment; D008962:Models, Theoretical; D010944:Plants; D011847:Radioactive Fallout; D011868:Radioisotopes; D012990:Soil Pollutants, Radioactive
D011847:Radioactive Fallout; D011868:Radioisotopes; D012990:Soil Pollutants, Radioactive