Abstract
This paper describes the approach taken to present the information on fruits in the IAEA report TRS No. 472, supported by the IAEATECDOC-1616, which describes the key transfer processes, concepts and conceptual models regarded as important for dose assessment, as well as relevant parameters for modelling radionuclide transfer in fruits. Information relate to fruit plants grown in agricultural ecosystems of temperate regions. The relative significance of each pathway after release of radionuclides depends upon the radionuclide, the kind of crop, the stage of plant development and the season at time of deposition. Fruit intended as a component of the human diet is borne by plants that are heterogeneous in habits, and morphological and physiological traits. Information on radionuclides in fruit systems has therefore been rationalised by characterising plants in three groups: woody trees, shrubs, and herbaceous plants. Parameter values have been collected from open literature, conference proceedings, institutional reports, books and international databases. Data on root uptake are reported as transfer factor values related to fresh weight, being consumption data for fruits usually given in fresh weight.
Highlights
The Technical Report Series (TRS) No 472 “Handbook of Parameter Values for the Prediction of Radionuclide Transfer in Terrestrial and Freshwater Environments” [1] derives from the TRS 364 Revision carried out within the framework of the IAEA International EMRAS (Environmental Modelling for Radiation Safety) Programme, Working Group 1 of Theme 1, in the years 2003–2007 [2].At the time of the drawing up of the TRS 364 “Handbook of parameter values for the prediction of radionuclide transfer in temperate environments” [3], edible crops had been divided into seven groups: cereals, fodder, grass, pods, root crops, tubers and vegetables
This paper describes the approach taken to present the information on fruits in the IAEA report TRS No 472, supported by the IAEATECDOC-1616, which describes the key transfer processes, concepts and conceptual models regarded as important for dose assessment, as well as relevant parameters for modelling radionuclide transfer in fruits
Fruit intended as a component of the human diet is borne by plants that are heterogeneous in habits, and morphological and physiological traits
Summary
The Technical Report Series (TRS) No 472 “Handbook of Parameter Values for the Prediction of Radionuclide Transfer in Terrestrial and Freshwater Environments” [1] derives from the TRS 364 Revision carried out within the framework of the IAEA International EMRAS (Environmental Modelling for Radiation Safety) Programme, Working Group 1 of Theme 1, in the years 2003–2007 [2]. At the time of the drawing up of the TRS 364 “Handbook of parameter values for the prediction of radionuclide transfer in temperate environments” [3], edible crops had been divided into seven groups: cereals, fodder, grass, pods, root crops, tubers and vegetables Such a division reflected the criteria used in modelling approaches [4], and was imposed by the data available at that time. The results of the activities of the group, were summarized both in the Special Issue of the Journal of Environmental Radioactivity “Radionuclide Transfer to Fruits” published in 2001, and in the Special Issue devoted to the BIOMASS Programme published in 2005 Both publications have provided a large share of the information utilized for the topic of the TRS 364 Revision on the transfer to fruit. This paper summarizes the key transfer processes concerning the behaviour of radionuclides in fruits, and the soil to fruit transfer factors related to fruit plants grown in agricultural ecosystems of temperate regions
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