Article

An extended critical review of twenty years of countermeasures used in agriculture after the Chernobyl accident

International Atomic Energy Agency, Vienna, Austria.
Science of The Total Environment (Impact Factor: 4.1). 10/2007; 383(1-3):1-24. DOI: 10.1016/j.scitotenv.2007.05.011
Source: PubMed

ABSTRACT A wide range of different countermeasures has been used to mitigate the consequences of the Chernobyl accident for agriculture in affected regions in Belarus, Russia and Ukraine. The paper comprehensively brings together key data on countermeasure application over twenty years for all three countries and critically evaluates the response to the accident with respect to agriculture. The extents of countermeasures implementation in various periods following the ChNPP accident are documented. Examples of best practices and drawbacks in remediation of affected areas are identified. Data on the effectiveness of agricultural countermeasures have been evaluated and the impact of countermeasures implementation to mitigate consequences of the accident has been assessed for the period 1986-2006. Implementation of agricultural countermeasures averted 30-40% of the internal collective dose that would have been received by the residents of affected regions without the use of countermeasures. The current situation in agriculture of areas subjected to contamination following the Chernobyl accident is described. Current and future needs for remediation, including a consideration of various strategies of rehabilitation of affected areas are presented.

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    • "But literature reviews indicate that mostly edible or above-ground parts of plants are taken into account in these studies (Ehlken and Kirchner, 2002; Fujiwara, 2013; Hampton et al., 2005; Staunton et al., 2003; Tamponnet et al., 2008). Even the specialized IAEA's Programme EMRAS (Environmental Modeling for radiation Safety) takes a similar approach to the assessment of 137 Cs behaviour in a "soil-plant" system (Fesenko et al., 2007). It is reasonable for practical measures of the control of plant production and soil remediation, but does not provide accurate information of 137 Cs root uptake by vegetation in radioactively contaminated terrestrial ecosystems. "
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    ABSTRACT: The estimation of modern parameters of 137Cs root uptake was conducted in natural meadow and agricultural ecosystems of post-Chernobyl landscapes of Tula region. The agrosystems with main crops of field rotation (barley, potatoes, rape, maize) occupying watersheds and slopes with arable chernozems are contaminated at a level 460-670 Bq/kg (4.7-6.0 Ci/km2); natural meadow ecosystems occupying lower parts of slopes and floodplains are contaminated at a level 620-710 Bq/kg (5.8-7.6 Ci/km2). In the arable soils 137Cs uniformly distributed to a depth of Ap horizon (20-30 cm of thickness), while in meadow soils 70-80% of the radionuclide is concentrated within the top Ad horizon (9-13 cm of thickness). These topsoil layer accords with rhizosphere zone, where >80-90% of plant roots are concentrated, and from which 137Cs is mostly consumed by vegetation. Total amount of 137Cs root uptake depends on the level of soil radioactive contamination (correlation coefficient 0.61). So 137Cs activity in meadow vegetation (103-160 Bq/kg) is generally more than one in agricultural vegetation (9-92 Bq/kg). The values of 137Cs transfer factor in the studied ecosystems vary from 0.01 (rape) to 0.20 (wet meadow), that confirms the discrimination of the radionuclide’s root uptake. The larger are the volume of roots and their absorbing surface, the higher are the values of transfer factor from soil to plant (correlation coefficients 0.71 and 0.64 respectively). 137Cs translocation from roots to shoots is also determined by biological features of plants. At the same level of soil contamination above-ground parts of meadow herbs accumulate more 137Cs than Gramineae species, and in agrosystems above-ground parts of weeds concentrate more 137Cs than cultivated cereals. Thus, the level of soil radioactive pollution and biological features of plants are determinants in the process of 137Cs root uptake and translocation and should be considered in land use policy.
    04/2015; 4(1):30-37. DOI:10.18393/ejss.56716
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    • "But literature reviews indicate that mostly edible or above-ground parts of plants are taken into account in these studies (Ehlken and Kirchner, 2002; Fujiwara, 2013; Hampton et al., 2005; Staunton et al., 2003; Tamponnet et al., 2008). Even the specialized IAEA's Programme EMRAS (Environmental Modeling for radiation Safety) takes a similar approach to the assessment of 137 Cs behaviour in a "soil-plant" system (Fesenko et al., 2007). It is reasonable for practical measures of the control of plant production and soil remediation, but does not provide accurate information of 137 Cs root uptake by vegetation in radioactively contaminated terrestrial ecosystems. "
    [Show abstract] [Hide abstract]
    ABSTRACT: The estimation of modern parameters of 137Cs root uptake was conducted in natural meadow and agricultural ecosystems of post-Chernobyl landscapes of Tula region. The agrosystems with main crops of field rotation (barley, potatoes, rape, maize) occupying watersheds and slopes with arable chernozems are contaminated at a level 460-670 Bq/kg (4.7-6.0 Ci/km2); natural meadow ecosystems occupying lower parts of slopes and floodplains are contaminated at a level 620-710 Bq/kg (5.8-7.6 Ci/km2). In the arable soils 137Cs uniformly distributed to a depth of Ap horizon (20-30 cm of thickness), while in meadow soils 70-80% of the radionuclide is concentrated within the top Ad horizon (9-13 cm of thickness). These topsoil layer accords with rhizosphere zone, where >80-90% of plant roots are concentrated, and from which 137Cs is mostly consumed by vegetation. Total amount of 137Cs root uptake depends on the level of soil radioactive contamination (correlation coefficient 0.61). So 137Cs activity in meadow vegetation (103-160 Bq/kg) is generally more than one in agricultural vegetation (9-92 Bq/kg). The values of 137Cs transfer factor in the studied ecosystems vary from 0.01 (rape) to 0.20 (wet meadow), that confirms the discrimination of the radionuclide’s root uptake. The larger are the volume of roots and their absorbing surface, the higher are the values of transfer factor from soil to plant (correlation coefficients 0.71 and 0.64 respectively). 137Cs translocation from roots to shoots is also determined by biological features of plants. At the same level of soil contamination above-ground parts of meadow herbs accumulate more 137Cs than Gramineae species, and in agrosystems above-ground parts of weeds concentrate more 137Cs than cultivated cereals. Thus, the level of soil radioactive pollution and biological features of plants are determinants in the process of 137Cs root uptake and translocation and should be considered in land use policy.
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    • "Complex interactions of radiation exposure throughout the ecosystem and the long-term impact of low-level radiation remain largely unknown, partly due to insufficient funding for the required monitoring agenda (Møller & Mousseau 2006). Similarly , a substantial amount of data on provisioning ecosystem services was gathered in the aftermath of the Chernobyl accident (Fesenko et al. 2007), but very little work has been conducted on other ecosystem services (Savchenko 1997). Data from comparable incidents (e.g., the Kyshtym disaster in the Ural in 1957) are virtually nonexistent , thus hardly any studies for comparisons are available. "
    Conservation Letters 08/2013; accepted. · 5.03 Impact Factor
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