Working Group

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Working Group

• Reference models for waste disposal

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Its difficult to make prediction, especially
about the futureMark Twain
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15 Participants
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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

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(No Transcript)
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Relevant combinations
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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

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Work for the next meetingProcess 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

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Work until the next meetingModel calculation
(3-5 group members)

• Assessment of exposures for GBI-Ecosystem
  combinations
• Apply present day temperate climate conditions
• 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

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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
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Next meeting

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