1980 Volume 15 Issue 3 Pages 157-166
It is important to forecast the behavior of radionuclides in a soil layer of the river bed or of the sea bottom for monitoring and evaluating the degree of environmental pollution resulting from the release of radionuclides from nuclear power plants or nuclear facilities.
The purpose of this paper is to investigate the behavior of 137Cs, one of the long-lived radionuclides, in a sandy layer of the sea bottom by conducting the diffusion experiments. The results obtained are as follows.
1) The effective diffusion coefficients of HTO for sandy layers were 3-5×10-6cm2/sec.
2) The mobility of 137Cs in the sandy layer depends more on the kind of soil mineral than on its texture.
3) The model which combines the linear isotherm and the first order kinetics well describes the behavior of 137Cs in a sandy layer of sea bottom.
