Pe Oot we gas ohne a eeee made several collections daily end forwarded the cacples for uniforz jrecessing to the New York Laboratory, the Argonne, Brookhaven, and Oak Ridge National Laboratories, Hanford, the University of Rochester, or the University of California at Los Angeles. The Air Force tracked radioactive clouds across the country and meade detailed atmospheric observations along the 85th meridian from Florida into Onterio. All data were brought together in New York to analyze the relationship between fall-out and weather conditions and to study the nature of radioactive dispersion in the atmosphere. Interpretations were made more difficult, particularly in October, by the presence in the atmosphere of other radioactivity originating in Russia. At no locale in the United States was the observed level of radiation high enough to be significant in terms of human and animal health. The fall-out from the Nevada tests was sufficient, however, to trouble cee the photographic industry, which found it necessary temporarily to sus- pend certain operations. (End ofBEESeection.) FCDA participation. anie The Federal Civil Defense Administration was invited to eS in the BUSTER-JANGLE operations to test bomb shelters of a backyard-type, which might be installed by home owners. Twenty-nine shelters of three basic types were exposed to shots BAKER, CHARLIE, DOG, end EASY. FCDA representatives also served wee 8 ates eee as monitors and took. an active pert in other radiological safety activi- ties. DOE ARCHIVES AEC personnel shelter test. A prototype communel shelter, to ec- commodete about 50 persons, was exposed to the same four shots to determine its suitability for use by AEC end contractor personnel at key installations such es Hanford. With e view to sirplicity, economy, and meximum' s€éivege value, the structure tested was built of pipe, half of it reinforced concrete and half corrugeted ed with 3 to 4 feet of earth. Its location wes 500 feet in the first three of these sho ts and a greater distance ¢O-inch culvert iron, end ccver- from ground cero from shot EASY. Snots CHERLIE.and DOG each exposed it to blest, redietion, and rears trerza eZTrects of greater severity an would be sustained et ground zero from @ 20-Kiloton explosion aeton ted at ea height of 2,000 feet. Obdservatle ithough recorded measurements ere still Oobabie effects on occupants, the resistance nfirmed the theoretical cesign estimates of fie ee o+ sures on the structure. (End of ermine er Project GABRIEL is a study began several veers ago to determine the long-renge toxic effects which right result from the cetonstion of é lerge nucber of atomic bombs. This question is being reexamined the lignt cP recent bezb tests by the following ed hoc comzitcies, wnose mere bership suggests the broad scope of the inquiry:_ 7)? -7 8 . - ory .