ti UNCLASSIFIED Observed occurrence of sr99 in soil, food, and man (brief summary with detailed supplementary insert) F. Predicted occurrence from weapons tests held prior to 1957 1, Relation to accepted concentration standards (the basis of which is to be discussed later) Nore: cs137 wi1l be outlined below G, Distribution in the physical environment 1, Half-life, stratospheric storage, chemical properties, similarities to potassium 2, Deposition H. Occurrence in food supplies; probable sources 1. poyagsium model for discussing behavior of in biosphere J. Observed occurrence in humans - relationship to accepte able concentrations, on basis to be discussed later K. Predicted occurrence in humans as a result of weapons tests to 1957 X, The Effects of Radiation on Man (oral, inserts, bibliography SOMATIC EFFECTS - PATHOLOGY A. Introduction and orientation: distinction between somatic and genetic effects, between acute effects of high level radiation and long-term effects of low level radiation and radioactivity, between damage per se and the standards developed to protect against damage B, Early effects of exposure of animals and man to external radiation 1. Gamma and x-radiation: sickness syndrome of radiation a. Fallout on Marshallese: Rongelap, Uterik (1) Children recently returned to Marshail Islands b. Los Alamos incidents e, Other examples - radium 2. Beta radiation - beta burns a. Marshallese b. Other examples - radium - 16 -

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