OS-21-1994 12:20 5162825311 BNL-MED. DEPT. P. 020 -18 By three days the lymphocytes dropped to 50% of the controld. The percent drop in the children less than 5 years of ago was greater than thatlof the people greater than 5 yeara. The lymphocyte count remained at approximately the same isvel through the exposure period. At 6 months, twelve months, two yearsfeni three yeara the level though increasing had not quite reached that of the contrpl population. Platelets The maximum depression in platelets was obtained epproxina fly 28 to 30 dsys after exposure in contrast to laboratory animals that attain their between the 10th and 15th days after exposure. finimun values In this case the clildren under 10 years of age had a greater percentage drop than those vho were oldér. The platelets began to recover after the 30th day attained a maximum about the 4fth day. There Was then a seconcary drop with a leveling off for the remainder of[the pest exposure period and at G6 months, 12 months, two years and throe years slow under way. Fecovery was still The levels of the population were approaching the contfrols but have not yet roached it. In all of the hematologic studies mentioned abovd it is stated that the present levels are net equal to that of the controlled populatiion. wish to cuphasize that the current levels of the blood cells of However I ajl types is more than adequate to take care of the infeotions and the various troubles of everyday existence, This statistical expression of a inadequate recovery probably represents the residual radiation injury that is of considerable interest tofstudy but does mot appear to be overtly harmful to the individuals. One can bo Feasonably confident in this because they are not faring less well in resistance to dibease than are the Marshallese who were nonexposed and living in the same area. - INTERNAL ABSORPTION OF RADIONUCLIDES During the tvo days before evacuation, the Rongelap people Jived under cormditions of extreme contamination without any concerted effarts to protec} themselves against the dangers of internal contamination, These individuals drank fontaninated water, and ate their natural foodstuffs which were contaminated externally, Their hands 4

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