Browsing by Author "Fesenko, S"

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    The environmental behaviour of uranium
    (International Atomic Energy Agency, 2023) Carvalho, FP; Fesenko, S; Harbottle, AR; Lavrova, T; Mitchell, NG; Payne, TE; Rigol, A; Thorne, MC; Ulanowski, A; Vidal, M; Voitsekhovych, O; West, JM; Yankovich, TL
    This publication is one of the series of IAEA publications on the environmental behaviour of naturally occurring radionuclides It outlines uranium behaviour in different environments, as well as its transfer to, and metabolism in, humans The publication also provides concepts, models and data required for the assessment of the impacts of uranium on non-human biota Assessing the environmental and health effects of uranium poses specific challenges because of the combination of different types of hazard and potential exposures Therefore, both the radiotoxicity and chemical toxicity of uranium are considered in this publication.
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    The IAEA handbook on radionuclide transfer to wildlife
    (Elsevier B.V., 2013-07-01) Howard, BJ; Beresford, NA; Copplestone, D; Telleria, D; Proehl, G; Fesenko, S; Jeffree, RA; Yankovich, TL; Brown, JE; Higley, K; Johansen, MP; Mulye, H; Vandenhove, H; Gashchakk, S; Wood, MD; Takatam, H; Andersson, P; Dale, P; Ryan, J; Bollhöfer, A; Doering, C; Barnett, CL; Wells, C
    An IAEA handbook presenting transfer parameter values for wildlife has recently been produced. Concentration ratios (CRwo-media) between the whole organism (fresh weight) and either soil (dry weight) or water were collated for a range of wildlife groups (classified taxonomically and by feeding strategy) in terrestrial, freshwater, marine and brackish generic ecosystems. The data have been compiled in an on line database, which will continue to be updated in the future providing the basis for subsequent revision of the Wildlife TRS values. An overview of the compilation and analysis, and discussion of the extent and limitations of the data is presented. Example comparisons of the CRwo-media values are given for polonium across all wildlife groups and ecosystems and for molluscs for all radionuclides. The CRwo-media values have also been compared with those currently used in the ERICA Tool which represented the most complete published database for wildlife transfer values prior to this work. The use of CRwo-media values is a pragmatic approach to predicting radionuclide activity concentrations in wildlife and is similar to that used for screening assessments for the human food chain. The CRwo-media values are most suitable for a screening application where there are several conservative assumptions built into the models which will, to varying extents, compensate for the variable data quality and quantity, and associated uncertainty. © 2012, Elsevier Ltd.
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    Whole-body to tissue concentration ratios for use in biota dose assessments for animals
    (Springer, 2010-11) Yankovich, TL; Beresford, NA; Wood, MD; Aono, T; Andersson, P; Barnett, CL; Bennett, P; Brown, JE; Fesenko, S; Fesenko, J; Hosseini, A; Howard, BJ; Johansen, MP; Phaneuf, MM; Tagami, K; Takata, H; Twining, JR; Uchida, S
    Environmental monitoring programs often measure contaminant concentrations in animal tissues consumed by humans (e.g., muscle). By comparison, demonstration of the protection of biota from the potential effects of radionuclides involves a comparison of whole-body doses to radiological dose benchmarks. Consequently, methods for deriving whole-body concentration ratios based on tissue-specific data are required to make best use of the available information. This paper provides a series of look-up tables with whole-body:tissue-specific concentration ratios for non-human biota. Focus was placed on relatively broad animal categories (including molluscs, crustaceans, freshwater fishes, marine fishes, amphibians, reptiles, birds and mammals) and commonly measured tissues (specifically, bone, muscle, liver and kidney). Depending upon organism, whole-body to tissue concentration ratios were derived for between 12 and 47 elements. The whole-body to tissue concentration ratios can be used to estimate whole-body concentrations from tissue-specific measurements. However, we recommend that any given whole-body to tissue concentration ratio should not be used if the value falls between 0.75 and 1.5. Instead, a value of one should be assumed. © 2010, Springer.