hired Net Ned heed he Wet ee a hee he NY a ded Net Net de ale Ne Ne a De OP ed a TO ae ate i idee et a he be ewe hs leo eked er MICRONESIA; NONDESTRUCTIVE ANALYSIS; NONMETALS; NORTH AMERICA; NUMERICAL DATA; OCEANIA; OXYGEN COMPOUNDS; TRANSITION ELEMENTS; WATER; X-RAY EMISSION ANALYSIS Subject Categories: (-1987) 10/5/548 01862288 560306* de eed be decent ef USA; -- Chemicals Metabolism & Toxicology -- Man -- (Item 248 from file: 103) AIX-17-064791; ERA-12-001863; EDB-86-186182 Title: Biogeochemical studies of long-lived radionuclides in marine environments Author(s): Noshkin, V.E.; Wong, K.M.; Eagle, R.J.; Jokela, T.A. Affiliation: California Univ., Livermore, USA. Lawrence Livermore National Lab. Title: Behaviour of long-lived radionuclides associated with deep-sea disposal of radioactive wastes. Report of a co-ordinated research programme 1982-1984 Corporate Source: International Atomic Energy Agency, Vienna (Austria) Lawrence Livermore National Lab., Publication Date: Report Number (s): Apr 1986 Subfile: AIX) ERA (USA) IABA-TECDOC-368 Order Number: DE86704234 Document Type: Analytic of a Report; Language: English Journal Announcement: EDB8609 Availability: NTIS CA p 119-127 Numerical data (US Sales Only), PC A08/MF AO0l. (Energy Research Abstracts). INIS (non-US Atomindex input Country of Origin: United States Country of Publication: International Atomic Energy Agency <IAEA> Abstract: At Eniwetok and Bikini lagoons, sup(239,240)Pu is always greater than fallout levels, in water samples, and this indicates that there is remobilisation from sediments. The respective water levels are 21 f£Ci l/sup -1/ and 42 £Ci 1/sup -1/, and lagoon inventories 0.96 and 1.2 Ci. This is 0.08% of sediment inventories. Small amounts of /sup 241/Am also dissociate. The soluble Pu is mostly Pusup(III,IV) when associated with particles and Pusup(V,VI) when truly soluble. Concentrations of /sup 90/Sr, /sup 137/Cs, sup(239,240)Pu, /sup 241/Am, /sup 207/Bi and /sup 210/Pb, /sup 210/Bi, /sup 210/Po in fish showed variation with trophic level in some cases. Values increased between levels 2 and 5 for /sup 90/Sr, sup(239,240)Pu, /sup 241/Am, but not /sup 137/Cs. Concentration factors varied, and a single generic value for all fish Species was not possible. Extrapolation of resuits from contaminated lagoons to lesser contaminated lagoons was not possible because in the former, radionuclides were fused with CaCO/sub 3/ and dissolve to some extent in the gut of fish. The speciation is different in lesser contaminated lagoons. Over 80% of the whole-activity of /sup 207/Bi in goatfish is associated with the muscle tissue, whereas less than 1% is found in the muscle of surgeonfish and mullet. Evidence was obtained that the isotope is translocating. Similarly /sup 210/Bi formed in fish bone translocates to liver. In the North-east Atlantic dumpsite, studies found concentrations no different from global fallout levels for radionuclides possibly leached from waste disposal practices there. 11 refs, 3 tabs. Major Descriptors: *AMERICIUM 241 -- RADIATION MONITORING; *AMERICIUM 241 -- RADIOECOLOGICAL CONCENTRATION; *BISMUTH 207 -- RADIATION MONITORING; *BISMUTH 207 -- RADIOECOLOGICAL CONCENTRATION; *BISMUTH 210 -RADIATION MONITORING; *BISMUTH 210 -- RADIOECOLOGICAL CONCENTRATION; *CESIUM 137 -- RADIATION MONITORING; *CESIUM 137 -- RADIOECOLOGICAL CONCENTRATION; *FISHES -- RADIONUCLIDE KINETICS; *LEAD 210 -- RADIATION MONITORING; *LEAD 210 -- RADIOECOLOGICAL CONCENTRATION; *PLUTONIUM 239 -~- RADIATION MONITORING; *PLUTONIUM 239 ~- RADIOECOLOGICAL CONCENTRATION; *PLUTONIUM 240 -- RADIATION MONITORING; *PLUTONIUM 240 -- RADIOECOLOGICAL CONCENTRATION; *POLONIUM 210 -- RADIATION MONITORING 7 *POLONIUM 210 -- RADIOECOLOGICAL CONCENTRATION; *SEBAWATER -- 2005313