LIST OF ILLUSTRATIONS © Figure Illustration of approach Relative location of atolls and people Curve fit of archival soil results Activity vs granule diameter for Bikini 15 ash 24 Cumulative % of activity deposited on the Sth Lucky Dragon vs time post-BRAVO detonation 26 Activity vs granule diameter for Rongelap Island fallout -26 Cumulative % of activity deposited on Rongelap Island vs time post-BRAVO detonation 26 Activity vs granule diamever for Utirik Island fallout 27 Cumulative 2 of activity deposited on Utirik Island va time post~BRAVO detonation 27 10 Exposure-Rate histories for Rongelap, Sifo, and Utirik based on Bikini ash characteristics 40 ll Integrated exposure vs time 40 12 A cistern at Rongelap Island 41 13 Photographs of food preparation techniques and living patterns at Rongelap and Utirik Islands - xi - 47