VINIGLASS UPD Part VII Biology and Medicine PROJECT SUNSHINE (UNCLASSIFIED) Soil Sampling and Comparison of Collection Methods Studies involving the monitoring of the distribution of fallout over the surface pf the earth have been extended. The analysis of gummed-paper samples from more than 100 termine their radiostrontium content. In addition, the discrepancy between data c ing comdifferent techniques is being investigated. Data from gummed-paper samples are pared to those from collection pots placed at about 20 gummed-paper stations in tlle United States and abroad. Stations were selected for these comparative studies in a m r which would provide samples from a variety of climates. In the analysis of soil samplesl studies are being conducted to establish the reliability of chemical methods for estimating notfonly the total strontium content but also the amount of strontium 90 available for plant upt eas related to the available calcium content. . op Menke5-1ea n Ae te eS me ee ee Distribution of Radiostrontium in Foodstuffs distribuMore information is being collected from foreign countries for research ont tion of radiostrontium in foodstuffs. Samples both of foods in the composite diet urine are being collected in Turkey and the Philippines by survey teams of the Int@rdepartmental Committee on Nutrition for National Defense, in which committee AEC Is garticipating. The samples will be analyzed by the New York Health and Safety Laboratory. Infofmation is also being collected on the foods which provide the major source of calcium, the per capita consumption, and the average calcium content of each foodstuff. These data may helpfto determine the Importance of such factors as geographic location, calcium content of so—%s, and local dietary habits in the distribution of strontium 90 in foodstuffs. MOUSE GENETICS Laboratory supplies the most important data available on induced mutations in m which extrapolations to human populations can be based. The United Kingdom has also been supporting at Harwell a smaller mouse gemetics project, which is now being expanded. To ensure that the Harwell and Oak Ridge proj@fts are UNCLASSIFIED 3]