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Working Group

Working Group. Reference models for waste disposal. Its difficult to make prediction, especially about the future Mark Twain. 15 Participants. Aims. Develop reference modelling approaches and reference cases for biosphere in the future on the basis of the BIOMASS approach

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Working Group

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  1. Working Group Reference models for waste disposal

  2. Its difficult to make prediction, especially about the futureMark Twain

  3. 15 Participants

  4. Aims • Develop reference modelling approaches and reference cases for biosphere in the future on the basis of the BIOMASS approach • Include environmental change in biosphere modelling • Climate, society, land use • Set of models/cases that cover a wide range of environmental situations

  5. Relevant combinations

  6. Processes involved in environmental transport and exposure to man • Drinking water (human, cattle) • Contamination of soils • Uptake by plants • Accumulation / speciation / migration / sorption / desorption • Erosion / resuspension / bioturbation • Foliar contamination • Interception, weathering, translocation • Transfer to meat and milk • Processes in sediments • Sorption / desorption /speciation / bioturbation / resuspension column • Processes in water • Speciation, uptake by fish etc. • Ingestion, Inhalation, ext. exposure

  7. Work for the next meeting:Process analysis • Identify impact of climatic factors on processes that may have a major influence on dose to man (all members) • Soils • Lakes • Landscape •  Are these processes/features of more universal nature or are they specific to a site? • In how far have models to be modified – developed for temperate climate – to address the specific conditions of the changed climate

  8. Work until the next meeting:Model calculation (3-5 group members) • Assessmentofexposuresfor GBI-Ecosystemcombinations • Applypresentdaytemperateclimateconditions • Assumptions, conceptual model, processes, parameters • Modification and application of model for other climates • To give modifications for Assumptions, conceptual model, processes, parameters • Justify modification • Compare results • Exposure, concentration in media • First conclusion

  9. GBI-Ecosystem combinations to be considered Radionuclides to be considered Cl-36, Ni-59, Se-79, Tc-99, I-129, Ra-226, Np-237, Pu-239

  10. Next meeting • Madrid • 3 days in the week of 4-8 May • Common sessions with BIOPROTA

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