This ratio compares with data reported to the authors showing urine samples from Bikini residents had about ten times the Pu of urine samples from New York residents. The comparison of these ratios indicates that differences in the levels of intake in the New York and Bikini populations can account for the relative difference between the Pu concentrations observed in urine samples from the two locations. Major Descriptors: *HUMAN POPULATIONS -- RADIONUCLIDE KINETICS; PLUTONIUM -~- ENVIRONMENTAL TRANSPORT; *PLUTONIUM -- TISSUE DISTRIBUTION Descriptors: BIKINI; COMPARATIVE EVALUATIONS; DIET; FALLOUT DEPOSITS; FOOD CHAINS; INGESTION; INHALATION; INTERNAL IRRADIATION; NEW YORK CITY; RADIATION DOSES; RADIOACTIVITY; SURFACE AIR Broader Terms: ACTINIDES; AIR; DISTRIBUTION; DOSES; ELEMENTS; FALLOUT; FLUIDS; GASES; INTAKE; IRRADIATION; ISLANDS; MARSHALL ISLANDS; MASS TRANSFER; METALS; MID-ATLANTIC REGION; NEW YORK; NORTH AMERICA; POPULATIONS; TRANSURANIUM ELEMENTS; USA Subject Categories: 560171* -- Radiation Effects -- Nuclide Kinetics & Toxicology -- Man -- (-1987) INIS Subject Categories: C21* -- Tissue Distribution, Toxicology & Removal of Radionuclides 10/5/977 00219456 Author(s): (Item 677 from file: Metabolism, 103) ERA-02-025468; INS-77-006723; EDB-77-057265 Colsher, C.S. Title: Derivation of plant-soil relationships for dose assessment on Bikini Atoll (Radiation dose to returning population) Corporate Source: Lab. California Univ., Publication Date: Nov 1976 Livermore (USA). Lawrence Livermore p 37 Report Number(s): UCID-17313 Contract Number (DOE): W-7405-ENG-48 Document Type: Report Language: English Journal Announcement: EDB7704 Availability: Dep. NTIS $4.00. Subfile: INS (US Atomindex input); BRA (Technical Information Center). Country of Origin: United States Country of Publication: United States (Energy Research Abstracts); TIC Abstract: A radiological survey of the terrestrial environment of Bikini and Eneu Islands (Bikini Atoll) was conducted in June 1975 to evaluate the potential radiation dose to the returning Bikini population. This report presents measurements of the radionuclide concentration in soil profiles and in dominant species of edible and nonedible indicator concentration factors together with leaf-leaf and fruit-leaf concentration ratios for indicator and edible plant species from the same area are calculated to quantitatively assess and compare” the uptake of /sup 90/Sr, /sup 137/Cs, and /sup 239/'/sup 240/Pu. In general, the concentration factors for /sup 137/Cs in terrestrial vegetation are greater than those for /sup 90/Sr and the concentration factors for both these nuclides exceed those for /sup 239/'/sup 240/Pu by ten to one hundred-fold. Uptake of /sup 90/Sr and /sup 239/'/sup 240/Pu by fruit is less than that by mature opposite is true for /sup 137/Cs. leaves; however, the IOG4O 1b plants and describes the use of these data to derive relationships to predict the plant uptake of radionuclides from soil. Soil-plant The relative contribution of the individual plant species to the internal dose to man varies with the nuclide. The use of concentration factors and concentration ratios to predict nuclide concentrations in fruit from those in soil or leaves is prescribed. ; Major Descriptors: *BIKINI -- TERRESTRIAL ECOSYSTEMS; *CESIUM 137 -ENVIRONMENTAL TRANSPORT; *FOOD -- RADIOACTIVITY; *HUMAN POPULATIONS -INTERNAL IRRADIATION; *HUMAN POPULATIONS -- RADIATION DOSES; *PLUTONIUM 239 -- ENVIRONMENTAL TRANSPORT; *PLUTONIUM 240 -- ENVIRONMENTAL TRANSPORT; *STRONTIUM 90 -- ENVIRONMENTAL TRANSPORT Descriptors: DOSE COMMITMENTS; ENVIRONMENT; FOOD CHAINS; FRUITS; PLANTS; RADIONUCLIDE KINETICS; RADIONUCLIDE MIGRATION; SOILS; VEGETABLES