preblems involving blast measurements, The scientific pres indicated that progress was made in structural design and to resist the effects of atomic explosions; knowledge was gd@ined and dynamic and static overpressures; but preliminary. evaluatio logical damage to animals inside the shelters tested did no indicate that people would or would not have survived in th Civil Defense Activities Survey of Sites for AEC Headquarters Building. A re-study was made of several suitable sites for a proposef new Headquarters Building, with a physical survey being made off the general vicinity of two of the sites, Sites recommended were seledted in ccn- sultation with the Office of Defense Mobilization which h the dispersal planning function, formerly the responsibili National Security Resources Board. Final selection will be determined by existing criterJa for Federal dispersal, as Well as accessibility for employees and nearness to other Government agencies. Research Activities Savannah River Survey. (UNCLASSIFIED) ‘The Academy of Natural Sciences of Philadelphia has reported the results of an exbensive survey of the biological conditions of the Savannah River.f 4A coordinated group of seven specialists using methods developed the Academy carried out an intensive study of five areas of the river with respect to the number of algee and several animal ps present during Spring, summer, and fall. The report is the first Btudy of a ccastal plain river in the United States which sets forth [the pattern of aquatic life at the same region during the various seagons of the year. It also includes the most extensive lists of specids from a coastal plain river yet published, The conciusions indicdte thet the river receives relatively little pollution in the regions[studied anc may be classified as a "healthy" river. The study ccnducted by the Academy is a portion of affccntinuing survey under AEC sponsorship by the U.S. Public Health Sefrwice and the Universities of Georgia and South Carclina to determine rpesitae changes from plant operations on the land areas and the Savannah River. Measurements of Radioisotopes with Photographic Emuilfions. (UNCLASSIFIsD) The accurate estimation of maximum permigpible dose levels in humans for various radioisctopes is dependent ubon accurate DOF ARCHIVES

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