1. Centre for Ecology & Hydrology - Lancaster October 2011 Brenda Howard

3.  Assessments are being done – little formal training available  - so we don't assume much prior knowledge  We are being asked for advice on use of assessment tools  The tools are only recently developed  various complexities and assumptions which need to be understood www.ceh.ac.uk/PROTECT

4.  Some tools freely available and usable by others  Focus here on ERICA Tool (and its Integrated Approach) developed by EC consortium  RESRAD-BIOTA and R&D 128 included when they have features not present in ERICA Tool www.ceh.ac.uk/PROTECT EPIC FP4 FASSET FP4 ERICA FP5 PROTECT FP6

5. www.ceh.ac.uk/PROTECT Release Risk

6. www.ceh.ac.uk/PROTECT Media concentration Release Dose rate Risk Dispersion model Transfer model Dosimetry model (internal exposure) Wholebody activity concentrations Dosimetry model (external exposure) Effects understanding/ numerical benchmark Problem formulation

7.  Many approaches use a tiered assessment structure (in common with other areas of risk assessments)  simple initial screening through to more refined assessments  Also referred to as:  staged or graded approaches

8. www.ceh.ac.uk/PROTECT

9. Environmental and health protection Conservatism Resources TIER 1 Risk screening TIER 2 Generic quantitative TIER 3 Detailed Quantitative Data needs

10. Environmental and health protection Conservatism Resources TIER 1 Risk screening TIER 2 Generic quantitative TIER 3 Detailed Quantitative Data needs Level of detail in a risk assessment should be: * proportionate with the nature and complexity of the risk considered * consistent with decision-making needs

11.  Nick Beresford – Introductions to tools, Transfer, Interpreting Assessments  David Copplestone – Introductions to tools, Benchmarks, Noble gases  Tom Hinton – Radiation effects  Brenda Howard – International context  Jordi Vives i Batlle – Dosimetry, Dispersion modelling www.ceh.ac.uk/PROTECT