concentration was found in the corals contaminated by Pu and Am; the fission track analysis the noncontaminated corals, in (2) shows wider ranges of uranium concentrations (1.8 to 3.1). Thus, in the corals not contaminated by Pu and Am, uranium concentrations similar to the uranium concentration in the contaminated corals were found; (3) uranium content in all corals analyzed was rather homogeneously distributed, i.e., no hot spots, stars, or areas differing in’ concentration by more than a few percent were detected by the fission track analyses.; . Major Descriptors: *AMERICIUM -- BIOGEOCHEMISTRY; *BIKINI *CORALS -- CONTAMINATION; *ENIWETOK -- CONTAMINATION; EXPLOSIONS -- ENVIRONMENTAL EFFECTS; *URANIUM -- BIOGEOCHEMISTRY Descriptors: -- CONTAMINATION; *NUCLEAR *PLUTONIUM -- BIOGEOCHEMISTRY; FISSION TRACKS Broader Terms: ACTINIDES; ANIMALS; CHEMISTRY; CNIDARIA; ELEMENTS; EXPLOSIONS; GEOCHEMISTRY; INVERTEBRATES; ISLANDS; MARSHALL ISLANDS; METALS; MICRONESIA; OCEANIA; PARTICLE TRACKS; TRANSPLUTONIUM ELEMENTS; TRANSURANIUM ELEMENTS Subject Categories: 450200* -- Military Technology, Weaponry, Defense -- Nuclear Explosions & Explosives INIS Subject Categories: E14* -- Nuclear Explosions & National 10/5/938 (Item 638 from file: 103) 00499846 AIX-10~-454238; EDB-79-073946 Title: Determination of plutonium in environment Author(s): Sakanoue, M. (Kanazawa Univ. (Japan). Faculty of Science) Source: Radioisotopes (Tokyo) (Japan) v 27:7. Coden: RAISA Publication Date: Jul 1978 p 410-421 Document Type: Journal Article Language: Japanese Journal Announcement: EDB7905 Subfile: AIX (non-US Atomindex input). Country of Origin: Japan Abstract: Past and present methods of determining the amount of plutonium in the environment are summarized. Determination of the amount of plutonium in uranium ore began in 1941. Plutonium present in polluted environments due to nuclear explosions, nuclear power stations, etc. was measured in soil and sand in Nagasaki in 1951 and in ash in Bikini in 1954. Analytical methods of measuring the least amount of plutonium in the environment were developed twenty years later. Many studies on and reviews of these methods have been reported all over the world, and a standard analytical procedure has been adopted. A basic analytical method of measurement was drafted in Japan in 1976. The yield, treatment of samples, dissolution, separation, control of measurable ray sources determination by ..cap alpha.. spectrometry, cross-check determination, and treatment of samples containing hardly soluble plutonium were examined. At present, the amount of plutonium can be determined by all of these methods. The presence of plutonium” was studied further, and the usefulness of determination of the plutonium 1lsotope ratio is discussed. ; Major Descriptors: *PLUTONIUM Descriptors: ALPHA SPECTROMETERS; ALPHA SPECTROSCOPY; BIBLIOGRAPHIES; CONTAMINATION; ENVIRONMENT; PLUTONIUM 239; PLUTONIUM 240; RADIATION DETECTION; REVIEWS; SAMPLE PREPARATION; SEPARATION PROCESSES; STANDARDIZATION Broader Terms: ACTINIDE ISOTOPES; ACTINIDE NUCLEI; ACTINIDES; ALPHA DECAY RADIOISOTOPES; DETECTION; DOCUMENT TYPES; ELEMENTS; EVEN-EVEN NUCLEI; EVEN-ODD NUCLEI; HEAVY NUCLEI; ISOTOPES; MEASURING INSTRUMENTS; METALS; NUCLEI; PLUTONIUM ISOTOPES; RADIOISOTOPES; SPECTROMETERS; SPECTROSCOPY; TRANSURANIUM ELEMENTS; YEARS LIVING RADIOISOTOPES Subject Categories: (-1987) 400103* INIS Subject Categories: B11* 10/5/939 00496131 -- Radiometric & Radiochemical Procedures --- Chemical & Isotopic Analysis 0! 047 (Item 639 from file: 103) INS-79-007170; ERA-04-031413; EDB-79-070231 9 004