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Laboratory Experiments on the Transfer Dynamics of Plutonium from Marine Sediments to Sea Water and to Marine Organisms

机译：海洋沉积物对海水和海洋生物体中钚转移动力学的实验室试验

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The leachability of exp 239 exp 240 Pu from a fine contaminated calcareous sediment to aerated open sea water and to anoxic sea water was measured. The distribution coefficient for exp 239 exp 240 Pu from sediment to sea water was 6.1 x 10 exp -5 for aerated water and 2.6 x 10 exp -6 for anoxic water. Experiments on the uptake of exp 239 exp 240 Pu by the clams Donax denticulatus, and Lucina pectinata, were done in aquaria containing kilogram quantities of sediment from the Bravo Crater at Bikini Atoll. The concentration factor for exp 239 exp 240 Pu by the soft parts of these clams was about 200. All the plutonium taken up in the soft parts was associated with the gill, mantle and siphon. No plutonium was detected in the adductor muscles or hepatopancreas. The smooth surfaces of the shells of the Donax did not show any detectable plutonium, but the rough shell surfaces of the Lucina concentrated plutonium by a factor of 1.10 x 10 exp 4 over that in the sea water. Marine periphyton cultured on glass plates in an aquarium concentrated exp 239 exp 240 Pu by a factor of about 7 x 10 exp 3 over that in the sea water.

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Mo, T.; Lowman, F. G.;
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年度 1975
页码 1-35
总页数 35
原文格式 PDF
正文语种 eng
中图分类工业技术;
关键词
Plutonium 239 ; Radioecological concentration ; Plutonium 240 ; Sediments ; Radionuclide migration ; Seawater ; Algae ; Bikini ; Molluscs ; Oxygen ; Radionuclide kinetics ; Uptake;

机译：钚239;放射生态浓度;钚240;沉积物;放射性核素迁移;海水;藻类;比基尼;软体动物;氧气;放射性核素动力学;摄取;

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Laboratory Experiments on the Transfer Dynamics of Plutonium from Marine Sediments to Sea Water and to Marine Organisms

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