caa a22 4500 465732062 CHVBK 20180323111744.0 cr unu---uuuuu 170327e19900701xx s 000 0 eng 10.1007/BF02060198 doi (NATIONALLICENCE)springer-10.1007/BF02060198 Plutonium and cesium isotopes in river waters in Japan [Elektronische Daten] [K. Hirose, M. Aoyama, Y. Sugimura] Concentrations of cesium isotopes and plutonium in river water samples in Japan, collected during the period from June 1985 to February 1987, have been measured. The total137Cs concentrations in the Japanese river waters ranged from 0.063 to 1.89 mBq·l−1. The portion of particulate137Cs to total was observed to be less than 10 to 35%. The total239,240Pu concentrations ranged from 0.56 to 1.93 μBq·l−1. Particulate239,240Pu occupied 13 to 95% of the total. After the Chernobyl fallout, elevated137Cs concentrations were observed in the Japanese river waters as well as the detection of134Cs, whereas there was no effect on the river plutonium from the Chernobyl fallout. The partition coefficients of137Cs and plutonium between suspended particulate and dissolved phases in the Japanese rivers were determined: from 1.0·104 to 3.2·105 and from 4.1·104 to 2.3·106 for137Cs and plutonium, respectively. The result suggests that these radionuclides, especially plutonium, are tightly associated with soil particles and/or suspended matter. Akadémiai Kiadó, 1990 Hirose K. Geochemical Laboratory, Meteorological Research Institute, Nagamine 1-1, 305, Tsukuba, Ibaraki, (Japan) aut Aoyama M. Geochemical Laboratory, Meteorological Research Institute, Nagamine 1-1, 305, Tsukuba, Ibaraki, (Japan) aut Sugimura Y. Geochemical Laboratory, Meteorological Research Institute, Nagamine 1-1, 305, Tsukuba, Ibaraki, (Japan) aut Journal of Radioanalytical and Nuclear Chemistry Kluwer Academic Publishers 141/1(1990-07-01), 191-202 0236-5731 141:1<191 1990 141 10967 https://doi.org/10.1007/BF02060198 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02060198 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Hirose K. Geochemical Laboratory, Meteorological Research Institute, Nagamine 1-1, 305, Tsukuba, Ibaraki, (Japan) aut NATIONALLICENCE 700 1- Aoyama M. Geochemical Laboratory, Meteorological Research Institute, Nagamine 1-1, 305, Tsukuba, Ibaraki, (Japan) aut NATIONALLICENCE 700 1- Sugimura Y. Geochemical Laboratory, Meteorological Research Institute, Nagamine 1-1, 305, Tsukuba, Ibaraki, (Japan) aut NATIONALLICENCE 773 0- Journal of Radioanalytical and Nuclear Chemistry Kluwer Academic Publishers 141/1(1990-07-01), 191-202 0236-5731 141:1<191 1990 141 10967 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer