Accumulation of 90Sr in the bone tissue of northern mole voles in the head portion of the East Ural Radioactive Trace

Starichenko, V.I.

doi:10.1134/s1067413611010115

Cited by 9 publications

(2 citation statements)

References 3 publications

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“…The data on radiation effects should be supported by radiation dosimetry. Internal BM exposure due to 90 Sr incorporation can be based on the information about skeleton contamination (Starichenko 2004;Starichenko et al 2014). In Shishkina et al (2021a) the data on 90 Sr skeleton contamination of herb field mouse (Sylvaemus uralensis) obtained during long-term (2003 -2012 years) study were summarized.…”

Section: Dosimetry Of Rodents Exposed At the East Urals Radioactive T...mentioning

confidence: 99%

Bone marrow dosimetry for mice: exposure from bone-seeking 89,90Sr

Shishkina

Shuiskaya

Sharagin

2022

Radiat Environ Biophys

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Studies of radiobiological effects in murine rodents exposed to internal radiation in the wild or in laboratory experiments require a dosimetric support. The main problem of bone marrow (BM) dosimetry for boneseeking β-emitters is dosimetric modeling due to the fact that the bone is a heterogeneous structure with complex microarchitecture. To date, there are several approaches to calculating the absorbed dose in BM, which mostly use rough geometric approximations. Recently, in the framework of studies of people exposed to 90 Sr in the Urals, a new approach (SPSD) has been developed. The aim of current study was to pilot test the possibility of extension of the SPSD-approach elaborated for humans to mice. The computational phantoms of femur bones of laboratory animals (C57BL/6, C57BL/6J, BALB/c, BALB/cJ) aged 5-8 weeks (growing) and >8 weeks (adults) were created. The dose factors to convert the 89,90 Sr activity concentrations in a bone tissue into units of the dose rate absorbed in the bone marrow were estimated as follows: DFSr-90(BMTBV+CBV) is equal to 1.75±0.42 and 2.57±0.93 (μGy day -1 ) per (Bq g -1 ) for growing and adults, respectively; DFSr-89(BMTBV+CBV) is equal to 1.08±0.27 and 1.66±0.67 (μGy day -1 ) per (Bq g -1 ) for growing and adults, respectively. These results are about 2.5 times lower than skeleton-average DF, calculated assuming the homogenous bone, where source and target coincide. The study demonstrates the possibility of application of the SPSD-approach elaborated for humans to non-human mammals.

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Section: Dosimetry Of Rodents Exposed At the East Urals Radioactive T...mentioning

confidence: 99%

Bone marrow dosimetry for mice: exposure from bone-seeking 89,90Sr

Shishkina

Shuiskaya

Sharagin

2022

Radiat Environ Biophys

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“…Soil invertebrates in the most contaminated areas received doses up to ∼100 Gy, and a decrease in numbers of some species was observed [7]. A radioecological reservation within the EURT was established in 1958, and since then data have been gathered on the transport of radionuclides in the environment and the response of the ecosystem to the accident (e.g., see [19,20]).…”

Section: Rem [250 Msv]'mentioning

confidence: 99%

A double diamond anniversary—Kyshtym and Windscale: the nuclear accidents of 1957

Wakeford

2017

J. Radiol. Prot.

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Ion-Exchange Modeling of Divalent Cation Adsorption on SWy-3 Montmorillonite

Schulthess

2021

Clays and clay miner.

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Ion-exchange modeling is used widely to describe and predict ion-adsorption data on clay minerals. Although the model parameters are usually optimized by curve fitting experimental data, this approach does not confirm the identity of the adsorption sites. The purpose of the present study was to extend to divalent cations a previous study on the retention of monovalent cations on Na-saturated montmorillonite (NaMnt) which optimized some of the model parameters using density functional theory (DFT) simulations. The adsorption strength of divalent cations increased in the order Mg2+ < Cd2+ < Ca2+ < Sr2+ < Ba2+. After adding adsorption of metal hydroxide species (MOH+), the three-site ion-exchange model was able to describe adsorption data over a wide pH range (pH 1–10) on NaMnt. X-ray diffraction (XRD) analyses were conducted to investigate the interlayer dimension of clay samples under various conditions. The cation retention strengths of divalent cations did not correlate with interlayer dimensions. The XRD analyses of the Mnt showed a d001 value of 19.6 Å when saturated with alkaline earth cations, 22.1 Å with Cd2+, 15.6 Å with Na+, and 15.2 Å with H+. In the case of Na+, the 15.6 Å peak decreased gradually and disappeared, and new peaks at 22.1 and 19.6 Å appeared when the percentages of Mg2+ and Ba2+ adsorbed increased on NaMnt. The peak shifted from 22.1 to 20.3 and 19.6 Å when the pH increased for all cations except Cd2+, which stayed constant at 22.1 Å. The coexistence of multiple d001 peaks in the XRD patterns suggested that the interlayer cations were segregated, and that the interlayer ion–ion interactions among different types of ions were minimized.

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Accumulation of 90Sr in the bone tissue of northern mole voles in the head portion of the East Ural Radioactive Trace

Cited by 9 publications

References 3 publications

Bone marrow dosimetry for mice: exposure from bone-seeking 89,90Sr

Bone marrow dosimetry for mice: exposure from bone-seeking 89,90Sr

A double diamond anniversary—Kyshtym and Windscale: the nuclear accidents of 1957

Ion-Exchange Modeling of Divalent Cation Adsorption on SWy-3 Montmorillonite

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