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"Reference Biospheres" for solid radioactive waste disposal: the BIOMASS methodology.
I G Crossland1, P Pinedo, J H Kessler
1Ian Crossland Consulting, Nympsfield, Gloucestershire GL10 3UB, UK. crossland@themutual.net
Journal of Environmental Radioactivity
|June 21, 2005
Summary
The BIOMASS project created a practical methodology for radioactive waste disposal assessments. This systematic approach aids in constructing mathematical biosphere models and managing biosphere changes, ensuring consistency in performance assessments.
Area of Science:
- Environmental Science
- Radiological Science
- Risk Assessment
Background:
- Radioactive waste disposal requires robust performance assessments.
- Biosphere modeling is crucial for understanding potential environmental impacts.
- Existing methodologies needed refinement for consistency and defensibility.
Purpose of the Study:
- To present the BIOMASS Methodology for constructing assessment biospheres.
- To provide a systematic framework for decision-making in biosphere assessments.
- To ensure consistency with international radiation protection recommendations (ICRP, IAEA).
Main Methods:
- Development of a five-step methodology for biosphere assessment.
- Emphasis on defining a clear assessment context.
- Utilizing interaction matrices to map habitat relationships and radionuclide transfer pathways.
Main Results:
- A logical and defensible methodology for biosphere assessment has been established.
- The methodology facilitates decision-making regarding biosphere change.
- Interaction matrices improve clarity and consistency in assessing radionuclide transport.
Conclusions:
- The BIOMASS Methodology offers a practical and systematic approach to biosphere assessment for radioactive waste disposal.
- A well-defined assessment context is vital for coherent and consistent performance assessments.
- Interaction matrices are valuable tools for analyzing biosphere system dynamics and ensuring assessment integrity.