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How geostatistics can help in predicting the level of radioactive contamination of cereals


Congress title :geoENV 2006 - 6th International Conference on Geostatistics for Environmental Applications
Congress town :Rhodes
Congress date :25/10/2006

Document type > *Congrès/colloque

Keywords >

Research Unit > IRSN/DEI/SESURE/LERCM

Authors > BRIAND Bénédicte, DURAND Vanessa, MERCAT-ROMMENS Catherine, METIVIER Jean-Michel

Publication Date > 27/10/2006

Summary

The study was devoted to the identification of the spatial parameters that contribute mainly to the assessment of the vulnerability of cereals in the context of accidental discharges of radioactivity into the environment. Linking an agronomical model and a radioecological model highlighted first that the flowering date was the main parameter, since it détermines the beginning of an exponential transfer of contaminants from the leaves of cereal plants to the edible part, the grain. Secondly, yield also appeared to be an important parameter as it allows the quantification of the number of contaminated products. The spatial statistical analysis performed on the yield data allowed the création of vulnerability maps with clear spatial trends, which can facilitate the management of risks associated with radioactive contamination of cereals during the post-accidental phase.

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