Approaches to providing missing transfer parameter values in the ERICA Tool – How well do they work?

Brown, Justin; Beresford, N.A.; Hosseini, A.

doi:10.1016/j.jenvrad.2012.05.005

Cited by 37 publications

(17 citation statements)

References 27 publications

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“…Brown et al, 2008;Copplestone et al, 2001Copplestone et al, , 2003USDoE, 2002) now established to estimate the exposure of wildlife to ionising radiations is an ability to predict wholebody activity concentrations of radionuclides in a wide range of biota. Although there are alternative approaches to predict transfer to wildlife in development, such as the use of taxonomic relationships (e.g.…”

Section: Introductionmentioning

confidence: 99%

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The transfer of 137 Cs, Pu isotopes and 90 Sr to bird, bat and ground-dwelling small mammal species within the Chernobyl exclusion zone

Beresford

Gaschak

Maksimenko

2016

Journal of Environmental Radioactivity

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Protected species are the focus of many radiological environmental assessments. However, the lack of radioecological data for many protected species presents a significant international challenge. Furthermore, there are legislative restrictions on destructive sampling of protected species to obtain such data. Where data are not available, extrapolations are often made from 'similar' species but there has been little attempt to validate this approach. In this paper we present what, to our knowledge, is the first study purposefully designed to test the hypothesis that radioecological data for unprotected species can be used to estimate conservative radioecolgical parameters for protected species; conservatism being necessary to ensure that there is no significant impact. The study was conducted in the Chernobyl Exclusion Zone. Consequently, we are able to present data for Pu isotopes in terrestrial wildlife. There has been limited research on Pu transfer to terrestrial wildlife which contrasts with the need to assess radiation exposure of wildlife to Pu isotopes around many nuclear facilities internationally. Our results provide overall support for the hypothesis that data for unprotected species can be used to adequately assess the impacts for ionising radiation on protected species. This is demonstrated for a range of mammalian and avian species. However, we identify one case, the shrew, for which data from other ground-dwelling small mammals would not lead to an appropriately conservative assessment of radiation impact. This indicates the need to further test our hypothesis across a range of species and ecosystems, and/or ensure adequate conservatism within assessments. The data presented are of value to those trying to more accurately estimate the radiation dose to wildlife in the Chernobyl Exclusion Zone, helping to reduce the considerable uncertainty in studies reporting dose-effect relationships for wildlife. A video abstract for this paper is available from: http://bit.ly/1JesKPc.

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Section: Introductionmentioning

confidence: 99%

“…Where data are unavailable, assumptions such as applying data for a 'similar organism' (e.g. mammal data for birds) are often made to provide default CR wo-media values for use in dose assessment tools (Beresford et al, 2008b;Brown et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

The transfer of 137 Cs, Pu isotopes and 90 Sr to bird, bat and ground-dwelling small mammal species within the Chernobyl exclusion zone

Beresford

Gaschak

Maksimenko

2016

Journal of Environmental Radioactivity

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“…Penggunaan ERICA Tool untuk melakukan penilaian radiologi sudah dilakukan oleh banyak peneliti, antara lainterhadap biota air tawar di Finlandia [3], kandungan tritium pada remis laut [4], penilaian radiologi pada situs tambang di Asia Tengah [5], dan penilaian radiologi pada gumuk pasir di daerah pantai Drigg [6]. Perhitungan dosis serap biota menggunakan perangkat lunak ERICA Tool melalui langkah-langkah seperti pada Gambar 1 [7].…”

Section: Pendahuluanunclassified

Penilaian Radiologi Effluent Pusat Sains Dan Teknologi Akselerator (Psta) Ke Sistem Biota Dengan Erica Tool

Desviana

Wijaya

2018

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RADIOLOGICAL ASSESSMENT OF EFFLUENT OF CENTER FOR ACCELERATOR SCIENCE AND TECHNOLOGY TO THE BIOTIC SYSTEM USING ERICA TOOL. One of the consequences of the KartiniReactor operation is its waste. The liquid waste is one type of the several wastes from the reactor. The liquid waste in the integrated canal must be well managed because there is a probability of the emerging contaminant product, either as a chemical substance or radioactive substance regardless of the small amount. The radioactive substance released to the environment as the effluent flowing to the small river may be used as the water source for irrigation and fishery, and also as a habitat to various organisms. The prevention towards the radionuclides release is done by taking sample as the step of monitoring environment. The samples taken were water and sediment. Furthermore, the dose absorption received by non-human biota was predicted using ERICA Tool software. The purpose of dose predictionusing ERICA Tool was to determine the dose received by non-human biota is still under permissible limit value based on BAPETEN Chairman Regulation Number 7 year 2013. The water samples contained natural radionuclides 212

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“…Beresford et al, 2008b). Brown et al (2013) recently evaluated how the most commonly used approaches performed against additional data now available . They concluded that the extrapolation approaches commonly used to date have under-predicted the empirical 95th percentile CR wo-media value as often as they have over-predicted.…”

Section: Introductionmentioning

confidence: 99%

Making the most of what we have: application of extrapolation approaches in radioecological wildlife transfer models

Beresford

Batlle

Yankovich

et al. 2016

Journal of Environmental Radioactivity

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We will never have data to populate all of the potential radioecological modelling parameters required for wildlife assessments. Therefore, we need robust extrapolation approaches which allow us to make best use of our available knowledge. This paper reviews and, in some cases, develops, tests and validates some of the suggested extrapolation approaches. The concentration ratio (CRproduct-diet or CRwo-diet) is shown to be a generic (trans-species) parameter which should enable the more abundant data for farm animals to be applied to wild species. An allometric model for predicting the biological half-life of radionuclides in vertebrates is further tested and generally shown to perform acceptably. However, to fully exploit allometry we need to understand why some elements do not scale to expected values. For aquatic ecosystems, the relationship between log10(a) (a parameter from the allometric relationship for the organism-water concentration ratio) and log(Kd) presents a potential opportunity to estimate concentration ratios using Kd values. An alternative approach to the CRwo-media model proposed for estimating the transfer of radionuclides to freshwater fish is used to satisfactorily predict activity concentrations in fish of different species from three lakes. We recommend that this approach (REML modelling) be further investigated and developed for other radionuclides and across a wider range of organisms and ecosystems. Ecological stoichiometry shows potential as an extrapolation method in radioecology, either from one element to another or from one species to another. Although some of the approaches considered require further development and testing, we demonstrate the potential to significantly improve predictions of radionuclide transfer to wildlife by making better use of available data.

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Approaches to providing missing transfer parameter values in the ERICA Tool – How well do they work?

Cited by 37 publications

References 27 publications

The transfer of 137 Cs, Pu isotopes and 90 Sr to bird, bat and ground-dwelling small mammal species within the Chernobyl exclusion zone

The transfer of 137 Cs, Pu isotopes and 90 Sr to bird, bat and ground-dwelling small mammal species within the Chernobyl exclusion zone

Penilaian Radiologi Effluent Pusat Sains Dan Teknologi Akselerator (Psta) Ke Sistem Biota Dengan Erica Tool

Making the most of what we have: application of extrapolation approaches in radioecological wildlife transfer models

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