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Biota Modelling Group WG Leader: Nick Beresford Participants: Participants: Australia, Belgium, Canada, Czech Rep., France, Korea, Norway, Russia, Spain,

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Presentation on theme: "Biota Modelling Group WG Leader: Nick Beresford Participants: Participants: Australia, Belgium, Canada, Czech Rep., France, Korea, Norway, Russia, Spain,"— Presentation transcript:

1 Biota Modelling Group WG Leader: Nick Beresford Participants: Participants: Australia, Belgium, Canada, Czech Rep., France, Korea, Norway, Russia, Spain, Sweden, UK, (USA)

2 Objectives To improve Member State’s capabilities for protection of the environment by comparing and validating models being used, or developed, for biota dose assessment (that may be used) as part of regulatory process of licensing and compliance monitoring of authorised releases of radionuclides –Consider ICRP C5 output(s) & transfer handbook

3 Workplan & agreed activities Interim 2 d meeting week 20 th July (IAEA Vienna) Scenarios/exercises: –U mine, Canada – scenario to be presented to BMG July 2009 (interim results for Jan. 2010) –Waste trenches, Australia – scenario to be presented to BMG Jan –Wetland, Sweden – scenario to be presented to BMG Jan –DCC benchmarking exercise – results July 2010 Overview of dynamic modelling – requirements & capabilities [chapter for final report] Assessment of heterogeneous distribution of radionuclides in media

4 Beaverlodge uranium mine (CNSC)

5 Beaverlodge Why?: –Sediment, water & fish data available over a number of years [enables model-data comparison] –Reduced invertebrate populations/effects in fish/multi-contaminants – interaction of BMG sub-tasks –Provide informed opinion on real issue

6 Little Forest Burial Ground (ANSTO) Waste trenches ( ’s material) Radionuclides: U, 3 H, Pu Am, Cs, Sr On-going research programme (initial modelling to guide this)

7 Wetland (Stockholm Univ.) Currently limited data (Cs, Sr) Possibility for additional sampling and analyses


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