[en] Distribution coefficients of Uranium series radionuclides such as Pb, Ra, Ac, Th, Pa as well as U were obtained under aerated zone and aquifer environments in order to have a database for the safety evaluation of shallow land disposal of uranium bearing waste. The distribution coefficients of them on four kinds of soil such as the loam in the rain water as for aerated zone environment and on three kinds of soil and rock such as the sand in the groundwater as for the aquifer environment have been measured by the batch method. The distribution coefficients in aerated zone environment were one or two orders of magnitude higher than those in the aquifer environment except Ac. There was an approximate linear relationship between the representative physical properties of the soil, such as the cation exchange capacity and the specific surface area, and the distribution coefficient of lead, radium and protactinium. (author)