eea 1. Reduce the use of contaminated food and water to bare minimum until adequate monitoring can be done; use first any stored clear water and canned or covered foods; wash and scrub any contaminated foods and; 2. If the effects of lack of food and water became acute, then use whatever is available but in as limited quantities as possibile. Whenever possible select what seems to be of the least likely contaminated water and/or foodstuffs; and 3. Since it is especially desirable to restrict the intake of radioactivity in children, give them first preference for food and water having the lowest degree of contamination. In an area of heavyfallout one matter to consider is the relative hazards from the exterséigamma exposure versus internal doses from in- gestion of the metecial. (Inhalation is thought to contribute anly relative thor doses under the conditions discussed here). ‘The best evieences on this point was the fallout that occurred on the Rongelapese dn March 1954. Thore in the highest exposure group received 175 r whole- body external gamma exposure yet their body burdens of internal emitters | 0 were relatively low (Table Five).> These and other data suggest that: If the degree of contamination of an area is such that the external gamma exposure would permit normal and continuous occupancy X after a fallout, the internal hazard would not deny it. This is based on such reasonable assimptions of (a) about 50% reduction of gamma exposure from out-of-doors doses afforded by living a part of each day in normal family dwellings, (b) weshing - 16 - DOE ARCHIVES C>