19. Conard, Robert A.s; Huggins, Charles E.; Cannon, Bradford; and Lowrey, Austen. MEDICAL SURVEY OF MARSHALLESE TWO YEARS AFTER EXPOSURE TO FALLOUT RADIATION. Medical 164, 1192-97 ci987). This report concerns the medical follow-up survey of 82 Marshallese people two years after exposure to fallout Fadisticn. © Rongelap Island, 6+ people and on Ailingnae, 18 people were exposed tc the radiation on March 1, 19%, after an experimental detonation of a nuclear device some 100 miles away. Initial and follow up studies on these people six months and one year after exposure have been reported. 20. Dunning, Gordon M. CRITERIA FOR ESTABLISHING SHORT TERM PERMISSIBLE INGES-~ TION OF FALLOUT MATERIAL. the Hygiene 19, 111-120 (1957). The criteria for establishing permissible ingestion of Padiouctive fallout material under emergency conditions for several weeks following a nuclear detonation are a dependent primarily on exposures (1) to the gastronine testinal tract from the gross fission product activity. (2) to the thyroid from“the isotopes of iodine, and (35 to bone, principally from strontium-90-yttrium-90, strontium-89, and barium-l40-lanthanum-140. Data on these effects are presented and their biological signif-~ icance is discussed. Some of the possible effects are summarized in a table and discussed in terms of permissible intake. Rules are suggested by which the least contaminated foods are used first, and preference in their use is given to children. If the degree of contamination of an area is such that the external gamma exposure would permit normal and continuous occupancy after a fallout, the internal hazard would not deny it. él. Dunning, Gordon M. FORMATION OF RADIOACTIVE PARTICLES. 16p. Paper presented at the Society of Nuclear Medicine, Salt Lake City, Utah, June 22, 1956.

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