ofICIAL USE ONT OFFICIAL USE ONLY We urgently need accelerated research in the problems . of:. genetics; radiation pathology; mixing between various parts of the atmosphere and the oceans; the. concentration of - radioactive materials by plants andanimals, both on itand and ay the ooeans} * geophysical and geochemical aspects of the “uitamate.disposal of radioactive wastes; selection of biologically Buitable sites for varlous atomic faciZities, such as nuclear power plants; and safety devices for the control of accidental 9 power surges in reactors, If, through careful control of all atomic activity, general | exposures to radiation are limited to what geneticists consider rep;sonable, there should be no direct ill effects on the people who receive the radiation. Larger exposures, however, of 100 roentgens and up, to the whole body or a large part of it are harmful, But much higher doses may be safely delivered to limited parts of the body under controlled conditions of medical treatments, One of the pathological effects of radiation is a general increase in the rate of aging and a conseguent shortening of life, Dose levels such as the geneticists believe reasonable, or as have been established for persons working with radiation, do not appear to have this effect, However, it is not known what minimum dose, if any, would be needed to give a noticeable reduction in life span if very large numbers of people were exposed, Radiation can enhance man's food supply through solution of practical problems in the use of fertilizer, the production of new and superior strains of food plants by mutations, and the sterilization of packaged food with reduction of the need for refrigeration and extension of shelf life of many products, OFFICIAL USE ONLY soe:

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