Modelling marine trophic transfer of radiocarbon (14C) from a nuclear facility

Tierney, K. M. et al. (2018) Modelling marine trophic transfer of radiocarbon (14C) from a nuclear facility. Environmental Modelling and Software, 102, pp. 138-154. (doi: 10.1016/j.envsoft.2018.01.013)

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Sellafield marine discharges of 14C are the largest contributor to the global collective dose from the nuclear fuel industry. As such, it is important to understand the fate of these discharges beyond the limitations and scope of empirical analytical investigations for this highly mobile radioactive contaminant. Ecopath with Ecosim (EwE) is widely used to model anthropogenic impacts on ecosystems, such as fishing, although very few EwE studies have modelled the fate of bioavailable contaminants. This work presents, for the first time, a spatial-temporal 14C model utilising recent developments in EwE software to predict the ecological fate of anthropogenic 14C in the marine environment. The model predicted observed trends in 14C activities between different species and through time. It also provided evidence for the integration of Sellafield 14C in species at higher trophic levels through time.

Item Type:Articles
Additional Information:This work was completed as part of the LO-RISE (Long-lived Radionuclides in Surface Environments; NE/L000202/1) consortium under the NERC RATE programme (Radioactivity and the Environment), co-funded by the Environment Agency and Radioactive Waste Management Ltd.
Glasgow Author(s) Enlighten ID:MacKinnon, Dr Gillian and Cook, Professor Gordon and Xu, Dr Sheng and Muir, Dr Graham and Tierney, Mr Kieran
Authors: Tierney, K. M., Heymans, J. J., Muir, G. K.P., Cook, G. T., Buszowski, J., Steenbeek, J., Walters, W. J., Christensen, V., MacKinnon, G., Howe, J. A., and Xu, S.
College/School:College of Science and Engineering > Scottish Universities Environmental Research Centre
Journal Name:Environmental Modelling and Software
ISSN (Online):1873-6726
Copyright Holders:Copyright © 2018 The Authors
First Published:First published in Environmental Modelling and Software 102:138-154
Publisher Policy:Reproduced under a Creative Commons License

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