Stable elements - as a key to predict radionuclide transport in forest ecosystems

As the chemical behavior of radiocesium is expected to be almost identical to that of stable Cs, analyses of stable Cs and related stable elements should be useful to understand the long-term behavior of radiocesium and its equilibrium distribution in forest ecosystems. In this study, the concentrat...

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Veröffentlicht in:Radioprotection 2002-02, Vol.37 (C1), p.C1-391-C1-396
Hauptverfasser: Bréchignac, F., Yoshida, S., Muramatsu, Y., Steiner, M., Belli, M., Pasquale, A., Rafferty, B., Rühm, W., Rantavaara, A., Linkov, I., Dvornik, A., Zhuchenko, T.
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Sprache:eng
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Zusammenfassung:As the chemical behavior of radiocesium is expected to be almost identical to that of stable Cs, analyses of stable Cs and related stable elements should be useful to understand the long-term behavior of radiocesium and its equilibrium distribution in forest ecosystems. In this study, the concentrations of stable Cs and related alkali and alkaline earth elements in mushrooms, plants and soils were determined by inductively coupled plasma-mass spectrometry (ICP-MS) or inductively coupled plasma-atomic emission spectrometry (ICP-AES). Samples were collected in forests with different contamination levels in Japan. Germany, Finland, Italy, Ireland and Belarus. Vertical distributions in soils, and concentrations in mushrooms and plants were summarized for radiocesium and related stable elements. Relationship between radiocesium and stable Cs in mushrooms and plants, and transfer from soil to vegetation were also discussed. The results indicated that the ratio between radiocesium and stable Cs is useful for judging the equilibrium of deposited radiocesium in different parts of a forest ecosystem. The stable Cs analyses might be also useful to predict the long-term radiocesium contamination of mushrooms and plants.
ISSN:0033-8451
1769-700X
DOI:10.1051/radiopro/2002073