A validation study for the transport of 134Cs to strawberry

Oncsik, M. B.; Eged, K.; Kis, Zoltán; Kanyár, B.

doi:10.1016/s0265-931x(01)00142-4

Cited by 3 publications

(1 citation statement)

References 14 publications

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“…Caesium is readily absorbed by leaves and redistributed into the whole plant via the sap transport system, in a way similar to potassium. Strontium is redistributed to a lesser extent in the plant and is incorporated into plant material, like calcium (Marschner, 1986;Oestling et al, 1989;Kuppelwieser and Feller, 1991;Zehnder et al, 1993;Scotti and Carini, 2000;Carini and Bengtsson, 2001;Brambilla et al, 2002;Macacini et al, 2002;Malek et al, 2002;Oncsik et al, 2002;Sabbarese et al, 2002;Madoz-Escande et al, 2004). Typical translocation factors of caesium are usually around 10 ÿ1 and translocation factors of strontium are around 10 ÿ2 for bean plants contaminated at the flowering development stage.…”

Section: Introductionmentioning

confidence: 99%

Retention and translocation of foliar applied 239,240Pu and 241Am, as compared to 137Cs and 85Sr, into bean plants (Phaseolus vulgaris)

Henner

Colle

Morello

2005

Journal of Environmental Radioactivity

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Section: Introductionmentioning

confidence: 99%

Retention and translocation of foliar applied 239,240Pu and 241Am, as compared to 137Cs and 85Sr, into bean plants (Phaseolus vulgaris)

Henner

Colle

Morello

2005

Journal of Environmental Radioactivity

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Radionuclides in fruit systems: Model prediction-experimental data intercomparison study

Ould-Dada

Carini

Eged

et al. 2006

Science of The Total Environment

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Role and uncertainty of foliar transfer in radiological impact assessments: State of the art and future actions

et al. 2009

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Abstract. Sensitivity analyses have shown major role of foliar transfer for many radionuclides in the context of radiological impact assessments. A review of the published literature about foliar transfer focusing on translocation factors was carried out in order to constitute an updated database on one hand and to use the appropriate existing values of translocation parameters for modeling on the other. Translocation describes the distribution of radionuclides within the plant after foliar deposition and radionuclide absorption onto the surface of leaves. It mainly depends on elements and the plant growth stage. The collected data was derived from both in-field and greenhouse experiments. It was analysed to select those coming from a contamination simulating sprinkling irrigation or rain. This work not only allowed us to carry out a diagnosis on the values themselves but also enabled us to ascertain missing data needs. In order to compensate for the lack of data on important radionuclides concerning radioactive waste ( 129 I, 36 Cl, 79 Se), experimental studies have been launched. CONTEXT AND DEFINITIONTransfer of radionuclides to plants by sprinkling irrigation with contaminated water in standard agricultural conditions is usually modelled for radiological impact assessments of radioactive waste disposals. Ingestion exposures from irrigated agricultural land are often a few times higher than those of drinking water. The deposition of radionuclides on vegetation and soil represents the starting point for their transfer in the terrestrial environment and in food chains. Interception is the second parameter entering the model and is defined as the fraction of a radionuclide deposited by wet deposition that is initially retained by the vegetation. Although the activity retained is subsequently removed by weathering to the soil and, the fraction that is initially intercepted is a very important quantity in all radioecological models. This is because direct deposition may cause relatively high activity concentrations in feed and foods. Once deposited on vegetation, radionuclides are lost from plants due to removal by wind and rain, either through leaching or by cuticular abrasion. Translocation describes the systemic transport of radionuclides in the plant subsequent to foliar uptake. Translocation has no or very little influence on the long-term-fate of radioactivity in the environment, since it describes only the distribution of radionuclides within the plant subsequent to foliar deposition and absorption by the leaves. However, for estimating radionuclide concentrations in foods and for the assessment of doses to man, the systemic transport of radionuclides is a key issue. It is especially important for plants from which only specific parts are used as food or feed, such as cereals and potatoes. For plants that are used whole, such as leafy vegetables or maize silage, translocation is relevant only in that it may reduce the amount of activity that is lost by weathering processes.Translocation is the phenomenon le...

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A validation study for the transport of 134Cs to strawberry

Cited by 3 publications

References 14 publications

Retention and translocation of foliar applied 239,240Pu and 241Am, as compared to 137Cs and 85Sr, into bean plants (Phaseolus vulgaris)

Retention and translocation of foliar applied 239,240Pu and 241Am, as compared to 137Cs and 85Sr, into bean plants (Phaseolus vulgaris)

Radionuclides in fruit systems: Model prediction-experimental data intercomparison study

Role and uncertainty of foliar transfer in radiological impact assessments: State of the art and future actions

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