(oun SUMMARY OF OPERATIONAL PHASES FOR PROJECT 40 OF OPERATION HARDTACK Objectives To determine, quantitatively and qualitatively, the presence of radioisotopes in the biota at the test site, in the northern Marshalls, eastern Carolines, and other islands as far westward as the Palaus. From these determinations estimates can be made of the geographical distribution of radioactive contaminants on land and in the ocean; of the radioactivity in foods eaten by the natives; of radioactivity in tuna and other fish of the commercial fisheries; of the concentration of specific isotopes by organisms and tissues; of the biological fate of long-lived isotopes (from pre-test collections); of the vertical and horizontal distribution of contaminants in the ocean; and of other relationships. * Project 40.1 - Pre-test Surveys Present levels of radiation at Eniwetok and Rongelap Atolls will be determined by thorough surveys of the two areas. plants, animals, soil and water are to be collected and Samples of sent to the laboratories for evaluation of residual radioactivity. Time schedule: Support facility: February 9 - March 16, [1958 USS Plumas County, LST 1083 (The Rongelap phase of thig operation will be carried out with Dr. Robert Conard, Brookhaven National Laboratory, and members of the medical team for studies on the native health program). *Letter from Dr. A. H. Seymour, U. S. Atomic Energy Commission, Division of Biology and Medicine, to Lt. Col. R. I. Schnittke, Division of Military Application, February 19, 1957. @ehtam.

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