Journal Announcement: EDB7801 Availability: Dep. NTIS, PC A0O5/MF AOl. INS Subfile: Abstracts); (US TIC Atomindex (Technical input); NTS (NTIS); Information Center). ERA (Energy Research Country of Origin: United States Country of Publication: United States : Abstract: The Division of Operational Safety or DOS (now Safety Standards and Compliance) portion of the Laboratory of Radiation Ecology (LRE) Pacific Radiocology Program (formerly Johnston Atoll Program) began on 1 July 1974 and is continuing. The purpose of this program is to determine the kinds and amounts of radionuclides distributed in the foods, plants, animals, and soil of the Central Pacific, especially the Marshall Islands. Five field trips were conducted for this program between April 1974 and August 1975, and about 600 samples were collected. Results of the analyses indicate that /sup 90/Sr and /sup 137/Cs are dominant in the terrestrial environment and, in addition, /sup 241/Am and /sup 239,240/Pu are also important in the soil from Bikini and Rongelap atolls. Cobalt-60 and /sup 55/Fe are predominant in the marine environment together with naturally occurring /sup 40/K. Amounts of radioactivity vary between atolls and between islands within an atoll in relation to the distance from the nuclear weapons test sites. Bikini atoll has the highest amounts of radioactivity, but the northern islands of Rongelap Atoll have only slightly lower amounts. Rongerik and Ailinginae atolls and the southern islands of Rongelap Atoll have similar amounts of radioactivity which are lower than Bikini by factors of 5 to 10 or more. Values at Utirik Atoll are lower still, but are higher than amounts at Wotho and Kwajalein atolls. Christmas Island in the Line Islands has the least amount of radioactivity of the areas Surveyed for this report.; Major Descriptors: *AMERICIUM 241 -- ENVIRONMENTAL TRANSPORT; *AQUATIC ECOSYSTEMS -~ RADIONUCLIDE KINETICS; *CESIUM 137 -- ENVIRONMENTAL TRANSPORT; *COBALT 60 --~ ENVIRONMENTAL TRANSPORT; *IRON 55 -ENVIRONMENTAL TRANSPORT; *MARSHALL ISLANDS -- RADIATION MONITORING; *MARSHALL ISLANDS -- RADIONUCLIDE KINETICS; *NUCLEAR EXPLOSIONS -FALLOUT; *PLUTONIUM 239 -- ENVIRONMENTAL TRANSPORT; *PLUTONIUM 240 -ENVIRONMENTAL TRANSPORT; *STRONTIUM 930 -- ENVIRONMENTAL TRANSPORT; *TERRESTRIAL ECOSYSTEMS -- RADIONUCLIDE KINETICS Descriptors: AQUATIC ORGANISMS; BIKINI; CRUSTACEANS; FISHES; FOOD; PLANTS; SAMPLING; SOILS; TIME DEPENDENCE; WILD ANIMALS Broader Terms: ACTINIDE ISOTOPES; ACTINIDE NUCLEI; ALKALI METAL ISOTOPES; ALKALINE EARTH ISOTOPES; ALPHA DECAY RADIOISOTOPES; AMERICIUM ISOTOPES; ANIMALS; AQUATIC ORGANISMS; ARTHROPODS; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; BIOMASS; CESIUM ISOTOPES; COBALT ISOTOPES; ECOSYSTEMS; ELECTRON CAPTURE RADIOISOTOPES; ENERGY SOURCES; EVEN-EVEN NUCLEI; EVEN-ODD NUCLEI; EXPLOSIONS; HEAVY NUCLEI; INTERMEDIATE MASS NUCLEI; INTERNAL CONVERSION RADIOISOTOPES; INVERTEBRATES; IRON ISOTOPES; ISLANDS; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; MARSHALL ISLANDS; MASS TRANSFER; MINUTES LIVING RADIOISOTOPES 7 MONITORING; NUCLEI; ODD-EVEN NUCLEI; ODD-ODD NUCLEI; PLUTONIUM ISOTOPES; RADIOISOTOPES; RENEWABLE ENERGY SOURCES; STRONTIUM ISOTOPES; VERTEBRATES; YEARS LIVING RADIOISOTOPES Subject Categories: 520300* -- Environment, Aquatic -- Radioactive Materials Monitoring & Transport -- (1989) 510301 -- Environment, Terrestrial -- Radioactive Materials Monitoring & Transport -- Soil -- (-1987) 510302 -- Environment, Terrestrial -- Radioactive Materials Monitoring & Transport -- Terrestrial Ecosystems & Food Chains -- (-1987) 450200 -- Military Technology, Weaponry, & National Defense -- Nuclear Explosions & Explosives INIS Subject Categories: B32* -- Water B31 -- Land C22 E14 10/5/963 00334311 -- Radionuclide Ecology -- Nuclear Explosions (Item 663 from file: 103) 5908 0b% AIX-08-332321; ERA-03-013079; EDB-78-022938