Accumulation of Radionuclides in Coastal Sediment of Japan (I) Fallout Radionuclides in Some Coastal Sediments in 1964-1965
スポンサーリンク
概要
- 論文の詳細を見る
Nineteen samples of sediment collected from Tokyo Bay and coastal water along Fukushima Prefecture were analyzed radiochemically. The HCl-extraction efficiencies of radionuclides in sediment were examined. Recoveries of more than 80% were obtained for Ce-144, Ru-106 and Cs-137 in fine mud collected in Tokyo Bay. The "shaver type" sampling device was designed to collected a large amount of sediment of the surface layer of 2 cm thickness. Sr-90, Cs-137 and Ce-144 concentrations in line mud were remarkably higher than those in sandy mud or sand. It was clearly observed that ratios of Ce-144/Sr-90 and Cs-137/Sr-90 in coastal sediments were substantially higher than those in sea water. Ce-144 and Cs-137 were found to be accumulated more effectively in the surface mud on the bottom of the sea, in comparison with Sr-90.
- 日本放射線影響学会の論文
著者
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佐伯 誠道
Department Of Environmental Contamination National Institute Of Radiological Sciences
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長屋 裕
Department of Environmental Contamination, National Institute of Radiological Sciences
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長屋 裕
Department Of Environmental Contamination National Institute Of Radiological Sciences
関連論文
- Accumulation of Radionuclides in Coastal Sediment of Japan (I) Fallout Radionuclides in Some Coastal Sediments in 1964-1965
- Some Fallout Radionuclides in Deep Waters around Japan
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- Zinc-65 and Other Fallout Nuclides in Marine Organisms of the California Coast
- A Study on the Vertical Transport of ^Sr and ^Cs in the Surface Waters of the Seas around Japan