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Integrated Assessment

Integrated Assessment. Working group or coordinated activity?. Objectives. To demonstrate that human and biota assessments fit into a consistent framework for radiological protection Generate guidance Familiarity in use of biota assessments Biota included as routine in assessments.

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Integrated Assessment

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  1. Integrated Assessment Working group or coordinated activity?

  2. Objectives • To demonstrate that human and biota assessments fit into a consistent framework for radiological protection • Generate guidance • Familiarity in use of biota assessments • Biota included as routine in assessments

  3. Why needed? • Environmental (conservation) legislation requires explicit demonstration of protection • ICRP make more reference to protection of the environment & have Committee 5 • IAEA – recognition of ‘expectations’, revised BSS contains reference to environmental protection through Environmental Impact Assessments • European BSS to include chapter on EP

  4. Used for assessments: • ERICA: Sweden, UK, Finland, OSPAR, parameters used in other approaches • EA R&D128: England & Wales >700 authorisations (Natura 2000 sites) and Scotland – all Natura 2000 sites in Scotland • RESRAD-BIOTA: US(DOE) sites • FASSET/EPIC: elements used in various approaches (inc. below) • Number of other approaches used in assessments in Canada, France, Lithuania

  5. Human Assessment PATHWAY OF EXPOSURE RADIONUCLIDE SOURCE HABITS INFORMATION ‘REFERENCE’ MAN Application of a weighting factor for RBE TOTAL ABSORBED DOSE Compare predicted dose to radiological criteria based on known biological effects IMPACT

  6. Human Assessment PATHWAY OF EXPOSURE RADIONUCLIDE SOURCE HABITS INFORMATION Dispersion model e.g. SRS-19 ‘REFERENCE’ MAN Application of a weighting factor for RBE TOTAL ABSORBED DOSE Compare predicted dose to radiological criteria based on known biological effects IMPACT

  7. Biota Assessment PATHWAY OF EXPOSURE RADIONUCLIDE SOURCE ECOLOGICAL PARAMETERS Dispersion model e.g. SRS-19 ‘REFERENCE’ ORGANISM Application of a weighting factor for RBE TOTAL ABSORBED DOSE Compare predicted dose to known biological or ecological effects & guideline values IMPACT

  8. Biota Assessment PATHWAY OF EXPOSURE RADIONUCLIDE SOURCE ECOLOGICAL PARAMETERS Dispersion model e.g. SRS-19 ‘REFERENCE’ ORGANISM Application of a weighting factor for RBE TOTAL ABSORBED DOSE Compare predicted dose to known biological or ecological effects & guideline values IMPACT

  9. Biota Assessment PATHWAY OF EXPOSURE RADIONUCLIDE SOURCE ECOLOGICAL PARAMETERS Dispersion model e.g. SRS-19 ‘REFERENCE’ ORGANISM Application of a weighting factor for RBE TOTAL ABSORBED DOSE Compare predicted dose to known biological or ecological effects & guideline values e.g. 10 µGy/h IMPACT

  10. Examples • RESRAD – Part of suite: Offsite, build, biota, chemical etc • Models being put together e.g. dispersion (MEAD), dosimetry and biota models for Sellafield • EA Initial Radiological Assessment Tool

  11. Suggested Plan • Training/familiarisation with biota models during next EMRAS meeting (Jan 2010)

  12. Suggested Plan • Training/familiarisation with biota models during next EMRAS meeting (Jan 2010) • Theme 1 working groups developing scenarios • Consider whether biota assessment appropriate to scenario & potential participants in Jan 2010

  13. Suggested Plan • Training/familiarisation with biota models during next EMRAS meeting (Jan 2010) • Theme 1 working groups developing scenarios • Consider whether biota assessment appropriate to scenario & potential participants in Jan 2010 • Participants run biota models, mid year meeting to discuss results (Jun 2010)

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