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Updated: Mar 5, 2026

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Published on: September 5, 2018
Water hardness determines 226Ra uptake in the tropical freshwater mussel
Che Doering1, Andreas Bollhöfer2
1Environmental Research Institute of the Supervising Scientist (ERISS), GPO Box 461, Darwin, NT 0801, Australia.
Abstract:
Chemical data for freshwater mussels (Velesunio spp.) and water from 15 sampling sites in the Alligator Rivers Region and Rum Jungle uranium provinces in tropical Northern Australia were analysed to develop a predictive model of radium-226 (226Ra) bioaccumulation for variable water calcium (Ca) and magnesium (Mg) concentrations. Application of the model as a 226Ra screening approach for freshwater mussels in tropical waterbodies potentially impacted by operational or remediated uranium mine sites is discussed in relation to Mudginberri Billabong, located approximately 12 km downstream of Ranger uranium mine in the Alligator Rivers Region.
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