Nam Aomen-lIroij Chain Bokbata Bikini Atol ] Bokantuak Bokdrolul Toms]an Bokaetoktok @ Oroken ndri kan A Jelete QD Luko; Aerokoj~Eneman chain Qo aS” Enidrik 0 5 10 Ly poy Jy yy Scale — km y J Fig. 1. The Bikini Atoll. analyzed soil profiles to investigate given location From the determined the distribution of activity with nuclide soil depth. same location. Soil-plant ‘concentration factors concentrations in soil at the The predicted nuclide concentrations in edible plants sub- and soil-plant regression equations, sequently serve as input data to together with leaf~leaf and leaf- predict the internal dose from ingested fruit concentration ratios, are terrestrial foods. This dose assess- and ment is presented in a separate report. calculated for 23¢9,240, 20 e L3?., Cs, in edible and indicator At Bikini Atoll, the uptake by plants as well as in soil from the plants of radioactive material from associated sampling site. the soil is the principal source of evaluation of these data, From our a method is foodchain contamination. Thus, soil developed for predicting the nuclide is both the convenient and the logical Concentrations in edible plants at a starting point for a prediction of