slightly higher than the whole-body estimates in each case. cells) (endosteal bone-surface cells The receive the highest dose, but they are a less sensitive cell population and are less sensitive to fatal cancer induction than whole body and bone marrow. The effective dose equivalents for 30, respectively. 50, 79 refs., and 70 y are 17 figs., 3.6 24 tabs rem, 5.3 rem, and 6.6 rem, Major Descriptors: *CARCINOGENESIS -- RISK ASSESSMENT; *CESIUM 137 -RADIOECOLOGICAL CONCENTRATION; *DOSE EQUIVALENTS -- FORECASTING; *HUMAN POPULATIONS -- DOSE EQUIVALENTS Descriptors: BONE MARROW; CROPS; ENIWETOK; ENVIRONMENTAL EXPOSURE PATHWAY; INGESTION; RADIOINDUCTION; REMEDIAL ACTION; WHOLE-BODY IRRADIATION Broader Terms: ALKALI METAL ISOTOPES; ANIMAL TISSUES; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; BODY; CESIUM ISOTOPES; ECOLOGICAL CONCENTRATION; EXTERNAL IRRADIATION; HEMATOPOIETIC SYSTEM; INTAKE; IRRADIATION; ISLANDS; ISOTOPES; MARSHALL ISLANDS; MICRONESIA; NUCLEI; OCEANIA; ODD-EVEN NUCLEI; ORGANS; PATHOGENESIS; POPULATIONS; RADIOISOTOPES; TISSUES; YBARS LIVING RADIOISOTOPES Subject Categories: 560161* -- Radionuclide Effects, Kinetics, & Toxicology -- Man 560151 -- "Radiation Effects on Animals -- Man INIS Subject Categories: C2110* -- Radioisotope effects, kinetics & toxicology in man C1500 -- Effects of External Radiation on Man 10/5/439 02150429 Author(s): J.A. Title: (Item 139 from file: 103) ERA-13-031142; EDB-88-093161 Noshkin, V.E.; Wong, K.M.; Eagle, R.J.; Jokela, T.A.; Brunk, Radionuclide concentrations in fish and invertebrates from Bikini Atoll Corporate Source: Publication Date: Report Number(s): Order Number: Lawrence Livermore National Lab., Jan 1988 p 55 CA (USA) UCRL-53846 DE88009031 Contract Number (DOE): W-7405-ENG-48 Document Type: Report; Numerical data Language: English Journal Announcement: NTS Subfile: NTS (NTIS); INS (US Atomindex Abstracts). Country of Origin: TIC (Technical United States input); Information Center) ERA (Energy Research Country of Publication: United States Abstract: As in other global studies, /sub 137/Cs was found in the highest concentrations in edible flesh of all species of fish and in the lowest concentrations in the bone or liver. The mean concentration of /sup 137/Cs in muscle of reef fish from the southern part of the atoll is comparable to the global-fallout concentration measured in market samples of fish collected from Chicago, IL, USA, in 1982. Strontium-90 is associated generally with non-edible parts of fish, such as bone or viscera. Twenty-five to fifty percent of the total body burden of /sub 60/Co is accumulated in the muscle tissue; the remainder is distributed among the liver, skin, and viscera. The mean concentration of /sub 60/Co in fish has been decreasing at a rate: faster than radiological decay alone. Most striking is the range of /sup 207/Bi concentrations among different species of fish collected at the same time and place. Highest concentrations of /sup 207/Bi were consistently detected in the muscle and other tissues of goatfish and some of the pelagic lagoon fish. In’other reef fish, such as mullet, surgeonfish, and parrotfish, /sub 207/Bi was usually below detection limits by gamma spectrometry. Over 70% of the whole-body activity of /sup 207/Bi in goatfish is associated;jwith the muscle tissue, whereas less than 5% is found in the muscle of mullet and surgeonfish. Neither /sup 239 +240/Pu nor /sup 241/Am is accumulated significantly in the muscle tissue of any species of fish. Apparently, 90037484 /sup 238/Pu is in a more readily available form