-il Observed occurrence of Sr? in soil, food, and man (brief summary with detailed supplementary insert) Predicted occurrence from weapons tests held prior to 1957 1. Relation to accepted concentration standards (the basis of which is to be discussed later) NOTE: Cs!37 will be outlined below Distribution in the physical environment 1. Half-life, stratospheric storage, chemical properties, similarities to potassium 2. Deposition Occurrence in food supplies; probable sources 1. Potassium model for discussing behavior of Cs137 in biosphere Observed occurrence in humans - relationship to acceptable concentrations, on basis to be discussed later Predicted occurrence in humans as a result of weapons tests to 1957 X. The Effects of Radiation on Man (oral, inserts, bibliography) SCMATIC EFFECTS ~ PATHOLCGY 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: a, Fallout on Marshallese: (1) 2. syndreme of radiation sickness Rongelap, Uterik Children recently returned to Marshall Islands b. Los Alamos incidents c. Other examples ~- radium JCAE : Beta radiation - beta burns a, Marshallese b, Other examples - radium a-\

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