Radiocesium in Ponds in the Near Zone of Fukushima Dai-ichi NPP

The article presents the results of studying radiocesium concentration and distribution between dissolved and particulate forms in ponds in the near zone of Fukushima Dai-ichi NPP NPP after the 2011 accident. The total concentration of 137 Cs in pond water and its variations are shown to be largely...

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Bibliographic Details
Published in:Water resources 2018-07, Vol.45 (4), p.589-597
Main Authors: Konoplev, A. V., Wakiyama, Y., Wada, T., Golosov, V. N., Nanba, K., Takase, T.
Format: Article
Language:English
Subjects:
Ammonium
Ammonium compounds
Aquatic Pollution
Caesium 137
Cesium 137
Cesium isotopes
Cesium radioisotopes
Distribution
Earth and Environmental Science
Earth Sciences
Hydrobiology: Environmental Aspects
Hydrochemistry
Hydrogeology
Hydrology/Water Resources
Lakes
Nuclear accidents
Particulate emissions
Particulate matter
Ponds
Rivers
Suspended particulate matter
Waste Water Technology
Water Management
Water Pollution Control
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Summary:The article presents the results of studying radiocesium concentration and distribution between dissolved and particulate forms in ponds in the near zone of Fukushima Dai-ichi NPP NPP after the 2011 accident. The total concentration of 137 Cs in pond water and its variations are shown to be largely governed by the concentration of particulate matter being as high as 68 Bq/L, compared with 5 Bq/L in solution. The values of the distribution coefficient K d in the ponds are similar to those in rivers and in large flow-through lakes in the accidentally polluted zone at Fukushima Dai-ichi NPP. The contributions of the main competing ions K + and NH 4 + to radiocesium desorption from solid particles into solution were similar for the ponds; however, their relative effect on dissolved radiocesium concentration varied over time because of variations in ammonium concentration.
ISSN:0097-8078
1608-344X
DOI:10.1134/S0097807818040139