1991
DOI: 10.1007/bf02039574
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Behaviour of transuranium elements in the environment

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Cited by 17 publications
(3 citation statements)
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“…The following methods were used to obtain these values: particle size, sieving and sedimentation; total N, Kjeldahl method; organic matter, oxidation of the organic matter by potassium dichromate in sulfuric acid; Ca2+ and Mg2~, by exchange versus NH4; CEC, by exchange versus 1 M NH4C1 at pH 7. Sampling and Sample Preparation. All soil samples were taken in June 1990 with a frame (50 x 50 cm) at five plots of the grassland within an area of about 5 x 5 m. The Ah horizon was subdivided in layers of 0-2,2-5, and [5][6][7][8][9][10] cm; the Ai horizon was subdivided in the layers 10-15 and 15-20 cm. From the Bt horizon, the layer 20-30 cm was sampled.…”
Section: Experiments Sectionmentioning
confidence: 99%
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“…The following methods were used to obtain these values: particle size, sieving and sedimentation; total N, Kjeldahl method; organic matter, oxidation of the organic matter by potassium dichromate in sulfuric acid; Ca2+ and Mg2~, by exchange versus NH4; CEC, by exchange versus 1 M NH4C1 at pH 7. Sampling and Sample Preparation. All soil samples were taken in June 1990 with a frame (50 x 50 cm) at five plots of the grassland within an area of about 5 x 5 m. The Ah horizon was subdivided in layers of 0-2,2-5, and [5][6][7][8][9][10] cm; the Ai horizon was subdivided in the layers 10-15 and 15-20 cm. From the Bt horizon, the layer 20-30 cm was sampled.…”
Section: Experiments Sectionmentioning
confidence: 99%
“…From the presently observed vertical concentration profiles of these elements in several soils, however, it must be concluded that actinides are sorbed rather tightly by various soil components (clay minerals, hydrous oxides, soil organic matter) and are thus rather immobile. Because the association of actinides with the various soil components controls their availability for migration and plant uptake, several investigations on this subject, even though mainly for Pu, exist (1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18). It seems, however, that a detailed study on the simultaneous association of Pu and Am from the global fallout with soil components in successive layers of a soil is not available.…”
Section: Introductionmentioning
confidence: 99%
“…In sub-plots b and c, open squares denote abundance in the reactor core inventory at the time of the accident uncontaminated river sand for mitigation of radioactivity after the accident. The Chernobyl-derived 239,240 Pu is distributed predominantly in the upper soil horizons in the case of undisturbed soil (Pavlotskaya et al 1991;Knatko et al 1996). Most of the 239,240 Pu was confined to within 60 cm of the surface soil in the studied sites in the Exclusion Zone, as presented in Fig.…”
mentioning
confidence: 96%