Dynamic modelling of the cesium, strontium and ruthenium to grass and vegetables.

P. Renaud, J. Réal, H. Maubert, and S. Roussel-Debet Health Physics, May 99, Vol 76, n°5, 495-501

From 1988 to 1993, the Nuclear Safety and Protection Institute (Institut de Protection et de Sûreté Nucléaire irsn) conducted experimental programs focused on transfers to vegetation following accidental localized deposits of radioactive aerosols. In relation to vegetable crops (fruit, leaves, and root vegetables) and meadow grass these experiments have enabled a determination of the factors involved in the transfer of cesium, strontium, and ruthenium at successive harvests, or cuttings, in respect of various time lags after contaminatiom The dynamic modeling given by these results allows an evaluation of changes In the mass activity of vegetables and grass during the months following deposit It constitutes part of the ASTRAL post-accident radioecology model.