Volume 37, Number C1, February 2002ECORAD 2001: The Radioecology - Ecotoxicology of Continental and Estuatine Environments
|Page(s)||C1-547 - C1-552|
|Published online||14 October 2009|
134Cs and 85Sr in blackberry plants
Università Cattolica del Sacro Cuore, Faculty of Agricultural Sciences, Institute of Agricultural and Environmental Chemistry, 29100 Piacenza, Italy
The transfer was investigated of 134Cs and 85Sr to a bush plant, blackberry, at short term after an acute release. Results presented of the first experimental year have been produced for validation of SPADE suite of codes. The objective was to improve the assessment of risk from ingestion of fruit contaminated with radionuclides. Blackberry plants were grown in pots filled with a mixture of peat, pumice and compost, and placed under a ventilated tunnel in field. An acute wet deposition was simulated of 134Cs and 85Sr in soluble form, onto the above-ground part of the plant or onto the soil surface, at three phenological stages : predormancy, anthesis, and ripening. Leaf to fruit translocation coefficients are one order of magnitude higher for 134Cs than for 85Sr. Direct deposition affects fruit activity, accounting for 55 % of 134Cs and 75 % of 85Sr detectable at harvest. Soil to fruit transfer coefficients are approximately one order of magnitude higher for 85Sr than for 134Cs.
© EDP Sciences, 2002
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