Inter-comparison of models to estimate radionuclide activity concentrations in non-human biota

Beresford, N.A.; Barnett, C.L.; Brown, Justin; Cheng, Jing-Jy; Copplestone, David; Filistovič, V.; Hosseini, A.; Howard, B.J.; Jones, Steve; Kamboj, S.; Крышев, А. И.; Nedveckaitė, T.; Olyslaegers, G.; Saxén, R; Сазыкина, Т. Г.; Batlle, J. Vives i; Vives-Lynch, S.; Yankovich, T.L.; Yu, C.

doi:10.1007/s00411-008-0186-8

Cited by 72 publications

(44 citation statements)

References 24 publications

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“…The results of this exercise are evaluated in Beresford et al [6]. Subsequently, two model-data comparisons (or scenario applications) were conducted (see IAEA [2] for details):…”

Section: Intercomparison Exercisesmentioning

confidence: 99%

Findings and recommendations from an international comparison of models and approaches for the estimation of radiological exposure to non-human biota

et al. 2009

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Abstract. There is general international acceptance of the need to demonstrate that the environment is protected from ionising radiation. In some countries requirements and guidelines for the protection of non-human biota are already in place. As a consequence a number of models and approaches have been proposed for the estimation of the exposure of non-human biota to ionising radiation. The IAEA EMRAS programme's Biota Working Group has conducted the most comprehensive intercomparison of the predictions of these approaches to date. In this paper, we present an overview of the activities of the Biota Working Group concentrating on its conclusions and recommendations.

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“…The results of this exercise are evaluated in Beresford et al [6]. Subsequently, two model-data comparisons (or scenario applications) were conducted (see IAEA [2] for details):…”

Section: Intercomparison Exercisesmentioning

confidence: 99%

Findings and recommendations from an international comparison of models and approaches for the estimation of radiological exposure to non-human biota

et al. 2009

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“…Recently, there has been growing international interest in the assessment of doses and risks to biota resulting from exposure to radionuclides from anthropogenic sources [10][11][12]. Several models are now available that enable the assessment of radiological risk to biota [13,14]. One of these is the ERICA Tool [15], which implements the ERICA Integrated Approach [10] developed within the EC 6th Framework Programme.…”

Section: Research Notementioning

confidence: 99%

Radiological Risk Assessment to Marine Biota Along Manora Channel Karachi Coast Pakistan

Saleem

Mashiatullah

Asma

et al. 2015

IJEE

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A B S T R A C TSources of radioactivity in the aquatic environment include naturally occurring radionuclides, fallout from the atmospheric and radioactive effluent from nuclear facilities that was released either accidentally or routinely. Depending upon the element and the chemical form, radionuclides may accumulate in bottom sediment or remain in the water column in the dissolved state. Marine organisms receive external radiation exposure from radionuclides in water and sediment. Radiological risk assessment was made for marine fish that are exposed to 137 Cs, 226 Ra, 228 Ra and 40 K along Manora channel Karachi coast of Pakistan using ERICA tool software. The ERICA tool is a software system that has a structure based upon the tiered ERICA integrated approach to assessing the radiological risk to terrestrial, freshwater and marine biota. The results were calculated using Tier 1 and Tier II assessments which are based on media concentration and use pre-calculated environmental media concentration limits to estimate risk quotients. If the sum of the risk quotients is <1, then it can be assured that there is a very low probability that the assessment dose rate to any organism exceeds the incremental screening dose rate and therefore the risk to non-human biota can be considered negligible. Risk quotient in this study is far below 1 which reveals that there is no evidence of deleterious effect of radionuclide for marine biota of the area under study.

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“…This scoring system, which is included in the International Organization for Standardization (ISO) guidelines as a standard method for laboratory assessment, was successfully used as a simple tool for comparison of different international approaches for the assessment of doses to non-human biota [22][23][24][25] (see the references for a description of the participant approaches). As the data considered in this study appear to be lognormally distributed, Z-scoring was performed on logarithmically transformed data for the purposes of comparison, using the following formula:…”

Section: An International Comparison Of Lietdos-bio Approaches To Assmentioning

confidence: 99%

LIETDOS-BIO assessment approach to the environment non-human biota exposure by ionizing radiation

Nedveckaitė¹,

Filistovič²,

Marčiulionienė³

et al. 2010

Lithuanian J. Phys.

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The increasing public concern over environmental hazards has led to the emergence of a variety of national and international legal commitments for the environment protection. The LIETDOS-BIO assessment approach to Environment protection from ionizing radiation is being developed to address contamination issues associated with nuclear power production and radioactive waste disposal in Lithuania. The LIETDOS-BIO was designed to be consistent with MCNPX code and Crystal Ball software for uncertainty analysis. The modelling of radionuclide migration through the components of a hypothetical waste disposal system (hypothetical Stabatiškės waste disposal contaminated zone, unsaturated zone, aquifer, and recharge to Lake Drūkšiai) has been performed using the computer code RESRAD-OFFSITE and a number of site-specific parameters together with distributions. Submerged hydrophytes were selected as biota exposure indicators because they represent the largest biomass in Lake Drūkšiai and have comparatively high radionuclide activity concentrations. The presented data demonstrate that submerged hydrophyte exposure is determined mainly by natural background radionuclides with predominance of 226 Ra ionizing radiation in the case of external exposure and internally incorporated α-emitters.238 U is the major contributor in the case of internal exposure. The LIETDOS-BIO code for non-human biota dose rate calculations was assessed during IAEA EMRAS BWG scientific program performance, and modelled-to-measured activity concentration predictions were found to be acceptable with the absolute value of Z-score between 0 and 2 derived from the Z-score intercomparison. The preliminary data presented here make it possible to investigate the relevance of Lake Drūkšiai as a cooling pond for the progression of nuclear energetics in Lithuania. A final decision on acceptability of this option awaits further review.

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Inter-comparison of models to estimate radionuclide activity concentrations in non-human biota

Cited by 72 publications

References 24 publications

Findings and recommendations from an international comparison of models and approaches for the estimation of radiological exposure to non-human biota

Findings and recommendations from an international comparison of models and approaches for the estimation of radiological exposure to non-human biota

Radiological Risk Assessment to Marine Biota Along Manora Channel Karachi Coast Pakistan

LIETDOS-BIO assessment approach to the environment non-human biota exposure by ionizing radiation

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