Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/7452
Appears in Collections:Biological and Environmental Sciences Journal Articles
Peer Review Status: Refereed
Title: Generic performance assessment for a deep repository for low and intermediate level waste in the UK - a case study in assessing radiological impacts on the natural environment
Authors: Jones, Steve R
Patton, D
Copplestone, David
Norris, Simon
O'Sullivan, Patrick
Contact Email: david.copplestone@stir.ac.uk
Keywords: radioactive waste
repository
radionuclides
dose assessment
biota
ecosystems
Issue Date: 2003
Publisher: Elsevier
Citation: Jones SR, Patton D, Copplestone D, Norris S & O'Sullivan P (2003) Generic performance assessment for a deep repository for low and intermediate level waste in the UK - a case study in assessing radiological impacts on the natural environment, Journal of Environmental Radioactivity, 66 (1-2), pp. 89-119.
Abstract: Concentrations of radionuclides in soil and surface water, taken from a generic performance assessment of a repository for low and intermediate level radioactive waste, assumed to be located in the UK, have been used as the basis for a case study in assessing radiological impacts on the natural environment. Simplified descriptions of the terrestrial and aquatic ecosystem types likely to be impacted have been developed. A scoping assessment has identified 226Ra, 210Po, 234U, 230Th and 238U as having the highest potential for impact, with doses from internally incorporated alpha emitters as being potentially of particular importance. These nuclides, together with 36Cl and 129I (which have proved to be of importance in radiological risk assessments for humans) were included in a more detailed dose assessment. A basic methodology for dose assessment of ecosystems is described, and has been applied for the defined impacted ecosystems. Paucity of published data on concentration factors prevented a more detailed assessment for terrestrial ecosystems. For the aquatic ecosystem, a more detailed assessment was possible and highest calculated absorbed dose rates (weighted for the likely higher biological effectiveness of alpha radiation) were about 6.5 μGy h−1. We conclude that harm to the impacted ecosystems is unlikely and make the observation that the lack of concentration factor or transfer factor data for a sufficiently wide range of species, ecosystems and nuclides appears to be the principal obstacle to establishing a comprehensive framework for the application of radiological protection to ecosyste
Type: Journal Article
URI: http://hdl.handle.net/1893/7452
DOI Link: http://dx.doi.org/10.1016/S0265-931X(02)00118-2
Rights: The publisher does not allow this work to be made publicly available in this Repository. Please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study.
Affiliation: Westlakes Scientific Consulting Ltd
Westlakes Scientific Consulting Ltd
Biological and Environmental Sciences
United Kingdom Nirex Limited
United Kingdom Nirex Limited

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