The transfer of Ag-110m to sheep tissues

Beresford, N.A.

doi:10.1016/0048-9697(89)90307-0

Cited by 14 publications

(7 citation statements)

References 16 publications

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“…Both the human evidence and the animal studies indicate substantial deposition of silver in the liver but the retention rate is influenced by the route of intake [12]. It is reported that the liver deposition of 110m Ag in sheep and its transfer coefficient to the liver was higher than that of 137 Cs in the Chernobyl nuclear accident [16]. These data indicate that the transfer coefficient of 110m Ag to the liver is higher than that of 137 Cs.…”

Section: Resultsmentioning

confidence: 99%

Distribution of Artificial Radionuclides in Abandoned Cattle in the Evacuation Zone of the Fukushima Daiichi Nuclear Power Plant

et al. 2013

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The Fukushima Daiichi Nuclear Power Plant (FNPP) accident released large amounts of radioactive substances into the environment. In order to provide basic information for biokinetics of radionuclides and for dose assessment of internal exposure brought by the FNPP accident, we determined the activity concentration of radionuclides in the organs of 79 cattle within a 20-km radius around the FNPP. In all the specimens examined, deposition of Cesium-134 (134Cs, half-life: 2.065 y) and 137Cs (30.07 y) was observed. Furthermore, organ-specific deposition of radionuclides with relatively short half-lives was detected, such as silver-110m (110mAg, 249.8 d) in the liver and tellurium-129m (129mTe, 33.6 d) in the kidney. Regression analysis showed a linear correlation between the radiocesium activity concentration in whole peripheral blood (PB) and that in each organ. The resulting slopes were organ dependent with the maximum value of 21.3 being obtained for skeletal muscles (R2 = 0.83, standard error (SE) = 0.76). Thus, the activity concentration of 134 Cs and 137Cs in an organ can be estimated from that in PB. The level of radioactive cesium in the organs of fetus and infants were 1.19-fold (R2 = 0.62, SE = 0.12), and 1.51-fold (R2 = 0.70, SE = 0.09) higher than that of the corresponding maternal organ, respectively. Furthermore, radiocesium activity concentration in organs was found to be dependent on the feeding conditions and the geographic location of the cattle. This study is the first to reveal the detailed systemic distribution of radionuclides in cattle attributed to the FNPP accident.

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Section: Resultsmentioning

confidence: 99%

Distribution of Artificial Radionuclides in Abandoned Cattle in the Evacuation Zone of the Fukushima Daiichi Nuclear Power Plant

et al. 2013

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“…This was because of low inherent transfer of the elements in the gut, compounded by low bioavailability due to their association within the matrix of fuel particles (Howard and Beresford 2000). Nevertheless, some high transfers occurred, notably that of 110m Ag to liver of ruminants (Beresford 1989).…”

Section: Early Phasementioning

confidence: 99%

“…Some accumulate in specific organs, for instance, radioiodine accumulates in the thyroid and many metal ions including 144 Ce, 106 Ru, and 110m Ag accumulate in the liver. Actinides and especially radiostrontium tend to be deposited in the bone, whereas radiocaesium is distributed throughout the soft tissues (Alexakhin and Korneev 1991;Beresford 1989;Beresford et al 1998;Crout et al 2004).…”

Section: Radionuclide Transfer To Animalsmentioning

confidence: 99%

Environmental consequences of the chernobyl accident and their remediation: twenty years of experience. Report of the chernobyl forum expert group ‘environment’

Higley¹

2006

Radiation Protection Dosimetry

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Recommendations for decontamination of the urban environment in case of large-scale radioactive contamination should be distributed to management of nuclear facilities having the potential of substantial accidental radioactive release (NPPs and reprocessing plants) and to authorities of adjacent regions. Research Generally, physical and chemical processes involved in environmental countermeasures and remediation technologies, both of mechanical nature (radionuclide removal, mixing with soil, etc.), chemical nature (soil liming, fertilisation, etc.) or their combinations, are understood well enough in order to be modeled and applied in similar circumstances worldwide. Much less understood are the biological processes that could be used in environmental remediation, e.g., re-profiling of agricultural production, bioremediation, etc. These processes require more research. An important issue that requires more sociological research is perception by the public of the introduction, performance and withdrawal of countermeasures in case of emergency, as well as development of social measures aiming at involvement of the public in these processes at all stages beginning with the decision making.

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“…The 110m Ag was reported in the liver of sheep and cattle following the Chernobyl accident (Beresford l989). Beresford (1989) reported liver transfer coefficients in two studies in sheep consuming Chernobylcontaminated rye grass grown in 1986 or 1987. Coefficients were greater in lambs than adults in the 1986 study (2.19 vs 0.64 d/kg), but not in the 1987 study (<1.55 vs 1.61 d/kg).…”

Section: Silvermentioning

confidence: 99%

Literature Review and Assessment of Plant and Animal Transfer Factors Used in Performance Assessment Modeling

Robertson¹,

Cataldo²,

Napier³

et al. 2003

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A literature review and assessment was conducted by Pacific Northwest National Laboratory (PNNL) to update information on plant and animal radionuclide transfer factors used in performance-assessment modeling. A group of 15 radionuclides was included in this review and assessment. The review is composed of four main sections, not including the Introduction. Section 2.0 provides a review of the critically important issue of physicochemical speciation and geochemistry of the radionuclides in natural soil-water systems as it relates to the bioavailability of the radionuclides. Section 3.0 provides an updated review of the parameters of importance in the uptake of radionuclides by plants, including root uptake via the soil-groundwater system and foliar uptake due to overhead irrigation. Section 3.0 also provides a compilation of concentration ratios (CRs) for soil-to-plant uptake for the 15 selected radionuclides. Section 4.0 provides an updated review on radionuclide uptake data for animal products related to absorption, homeostatic control, approach to equilibration, chemical and physical form, diet, and age. Compiled transfer coefficients are provided for cows milk, sheeps milk, goats milk, beef, goat meat, pork, poultry, and eggs. Section 5.0 discusses the use of transfer coefficients in soil, plant, and animal modeling using regulatory models for evaluating radioactive waste disposal or decommissioned sites. Each section makes specific suggestions for future research in its area. A compact disk (CD) is supplied with this report. The CD contains an electronic copy of this report in portable document format (PDF). The figures in this report have been printed in black and white; color versions of the figures are provided on the CD.

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The transfer of Ag-110m to sheep tissues

Cited by 14 publications

References 16 publications

Distribution of Artificial Radionuclides in Abandoned Cattle in the Evacuation Zone of the Fukushima Daiichi Nuclear Power Plant

Distribution of Artificial Radionuclides in Abandoned Cattle in the Evacuation Zone of the Fukushima Daiichi Nuclear Power Plant

Environmental consequences of the chernobyl accident and their remediation: twenty years of experience. Report of the chernobyl forum expert group ‘environment’

Literature Review and Assessment of Plant and Animal Transfer Factors Used in Performance Assessment Modeling

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