Root uptake of radionuclides following their acute soil depositions during the growth of selected food crops

Choi, Yong-Ho; Lim, Kwang-Muk; Jun, In; Park, Doo-Won; Keum, Dong-Kwon; Lee, Chang-Woo

doi:10.1016/j.jenvrad.2008.12.007

Cited by 19 publications

(23 citation statements)

References 33 publications

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“…The physiological activities of plants, the developmental stages of their organs, and the availability of radionuclides for root uptake change with time (Choi et al 2005(Choi et al , 2009). In the case of an acute release during the vegetation period, therefore, soilto-plant transfer of radionuclides may greatly depend on the time of their deposition.…”

Section: Time Trendsmentioning

confidence: 99%

“…In the case of an acute release during the vegetation period, therefore, soilto-plant transfer of radionuclides may greatly depend on the time of their deposition. Accordingly, time-dependent deposition values of a soil-to-plant transfer factor would be useful for estimating the root uptake from an acute vegetationperiod deposition (Choi et al 1998(Choi et al , 2009. Transfer factors of radiocesium and radiostrontium in lysimeter and field experiments were frequently observed to decrease slowly with time for some years after contamination of the soils (Squire and Middleton 1966;Noordijk et al 1992;Nisbet and Shaw 1994).…”

Section: Time Trendsmentioning

confidence: 99%

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Radionuclide Uptake from Soil to Plants: Influence of Soil Classification

Mollah

2014

Radionuclide Contamination and Remediation Through Plants

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The entry of trace contaminants, which are present in the terrestrial environment, into human food chains is controlled in the long term by their uptake by plant roots. The radionuclides released into the environment can give rise to human exposure by the transport through the atmosphere, through aquatic systems, or through soil subcompartments. Soil-to-plant factor is one of the important parameters to be used in transfer models for predicting the concentration of radionuclides in crops/plants and for estimating dose impacts to man. Existing databases are limited to experimental values in a restricted number of soil systems and are largely comprised of temperate environment data. In general, transfer factors show a large degree of variation dependent upon several factors such as soil type, species of plants, and other environmental conditions. Soil-to-plant transfers of the radionuclides varied considerably with the times of deposition also. In general, the variations with the deposition times were by a factor of up to 10. This chapter describes a review of published data on the transfer factor (TF) and classification of soils based on TFs.

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Section: Time Trendsmentioning

confidence: 99%

Section: Time Trendsmentioning

confidence: 99%

Radionuclide Uptake from Soil to Plants: Influence of Soil Classification

Mollah

2014

Radionuclide Contamination and Remediation Through Plants

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“…The dispersed radiocaesium can contaminate terrestrial environment and enter the food chain [1][2][3]. The critical radionuclide pathways from the source point to human is: soil -plant -human, hence for nuclear safety assessment, especially for public dose estimation, the radionuclide transfer from soil to plant is interesting.…”

Section: Introduction * * * *mentioning

confidence: 99%

“…Plants have an ability to accumulate element from the soil, including radionuclide, so the concentration of the element in plants much higher than that in soil. This ability is expressed as bioconcentration factor or transfer factor, which is defined as ratio of element concentration in plant tissue to that in soil medium after equilibrium condition had been reached [3]. The bioconcentration factor is calculated for edible part, i.e.…”

Section: Introduction * * * *mentioning

confidence: 99%

Model Validation of Radiocaesium Transfer from Soil to Leafy Vegetables

Sukmabuana

Tjahaja

2012

Atom Indo.

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The accumulation of radionuclide in plant tissues can be estimated using a mathematical model, however the applicability of the model into field experiment still needs to be evaluated. A model validation has been conducted for radiocaesium transfer from soil to two leafy vegetables generally consumed by Indonesian people, i.e. spinach and morning glory in order to validate the transfer model toward field experimental data. The vegetable plants were grown on the soil contaminated with 134 CsNO 3 of 19 MBq for about 70 days. As the control, vegetables plant were also grown on soil without 134 CsNO 3 contamination. Every 5 days, both of contaminated and un contaminated plants were sampled for 3 persons respectively. The soil media was also tested. The samples were dried by infra red lamp and then the radioactivity was counted using gamma spectrometer.

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“…In recent years, many efforts have been put by India and worldwide to generate the soil-to-plant transfer factor (TF S-P ) values for different radionuclides (manganese-54, cobalt-60, strontium-90, cesium-134, cesium-137) under various laboratory conditions using spike experiments (Choi et al 2009;Sandeep and Manjaiah 2008;Quinto et al 2009). Though the experimental transfer factor values (TF) are available, they can be best used only for fresh fallout and they do not reflect the long-term behavior of radionuclides in ambient environment.…”

Section: Introductionmentioning

confidence: 99%

Transfer of 137Cs and 40K from Agricultural Soils to Food Products in Terrestrial Environment of Tarapur, India

Panchal

Rao

Mehta

2011

Water Air Soil Pollut

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The 137 Cs and 40 K activities and transfer factors from soil to vegetables, grass, and milk from villages located around Tarapur Atomic Power Station (TAPS) were determined using high-resolution gamma spectrometry. A total of 32 soil, 21 vegetable, 23 dry paddy grass, and 23 milk samples were collected from 23 different agricultural farms from various villages around TAPS to determine transfer factors for natural environment. The mean concentration values for 137 Cs and 40 K in soil, grass, and milk were 2.39± 0.86 Bq kg −1 , 0.31 ± 0.23 Bq kg −1 , and 12.4 ± 5.7 mBq L − 1 and 179±31 Bq kg − 1 , 412± 138 Bq kg −1 , and 37.6±9.3 Bq L −1 , respectively, for soil-grass-milk pathway. In the soil-vegetation pathway, the mean concentrations values for 137 Cs and 40 K were 2.15±1.04 Bq kg −1 , 16.5±7.5 mBq kg −1 , and 185±24, 89±50 Bq kg −1 , respectively. The evaluated mean transfer factors from soil-grass, grass-milk, and soil-vegetation for 137 Cs were 0.14, 0.0044, and 0.0073 and that of 40 K were 2.42, 0.0053, and 0.49, respectively. Only 15 out of total 44 milk and vegetable samples were detected positive for 137 Cs, indicating a very low level of bioavailability.

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Root uptake of radionuclides following their acute soil depositions during the growth of selected food crops

Cited by 19 publications

References 33 publications

Radionuclide Uptake from Soil to Plants: Influence of Soil Classification

Radionuclide Uptake from Soil to Plants: Influence of Soil Classification

Model Validation of Radiocaesium Transfer from Soil to Leafy Vegetables

Transfer of 137Cs and 40K from Agricultural Soils to Food Products in Terrestrial Environment of Tarapur, India

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