In the and The crater 207Bi 1 although soils nuclides only seclimerits others and sediments in surface soil samples rates were samples were taken measured in proportions are obvious. ~Le of the of 137 Cs (Tables t quantities. of radionuclides, other plutonium, collected are given and individual In general, than ality are not remain 1965: the highest are maximum water 137 of samples 1. dose Differences at the islets concentrations Eneman in Table gamma values. radionuclides in the of gamma-ray result and consequent ten. in 1970 areas. since from Fallout concentrated Welanderr analyses concentrations surprising, samples spectrum collected in undisturbed than where than sampled Cs relative from periodic leaching away 2 and 3). samples for individual in 1969 areas low radionuclide areas well-point from area by tidal The results meter 90~r of radi,o– ~nusudlly flooding et al., co, reservoirs of different radionuclides soils in small 60 1 are the principal and hence to other of more are present 55Fe : at Bikini. The concentrations The four predominate the at Bikini increments in 1970, are lower The Island and the to this transects differ values factors atoll for many (Held ten sampled samples by gener– in undisturbed surface were 4. in bulldozed and highest surface composite in Table lowest radionuclides at the four are given The exceptions single 1967). of the show years centimeters by one–half a gradient at centiof