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Ertel, J. ; Voigt, G.

Weathering of 134/137 Cesium Following Leaf Contamination of Grass Cultures in an Outdoor Experiment.

Radiat. Environ. Biophys. 28, 319-326 (1988)
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Open Access Green as soon as Postprint is submitted to ZB.
After spraying grass cultures with rainwater collected after the Chernobyl reactor accident, the time-dependence of the weathering of leaf contamination of134/137CS was determined. Hereby the influence of rain and of biomass increase due to growth was considered. Two effective half-lives were found of 6 d and more than 60 d in rain-protected grass for the activity per area (corresponding to 8 d and more than 60 d when related to the activity per dry weight) and 2 d and 30 d in rain-exposed grass for the activity per area (3 d and 23 d when activity per dry weight is considered). These half-lives represent the initially rapid (for about 90% of the activity) and later slow (for the residual about 10%) decrease of the Cesium content in grass. They might be due to different weathering mechanisms whereby the translocation of the radionuclides from the leaf surface into the plant interior and the loss of wax particles might be of importance.
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Publication type Article: Journal article
Document type Scientific Article
Language english
Publication Year 1988
HGF-reported in Year 0
ISSN (print) / ISBN 0301-634X
e-ISSN 1432-2099
Journal Radiation and Environmental Biophysics
Quellenangaben Volume: 28, Issue: 4, Pages: 319-326 Article Number: , Supplement: ,
Publisher Springer
Reviewing status Peer reviewed
Institute(s) Institute of Radiation Protection (ISS)
DOI 10.1007/BF01212971
Erfassungsdatum 1988-12-31
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