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DELIVERABLE D7b: Briefing Notes from The Second Thematic EUG Event Part 1: Ionising Radiation and other Contaminants and Part 2: Contribution to Deliverable D4 on Risk Characterisation

1 Introduction The ERICA co-ordinator, Carl-Magnus Larsson, welcomed all participants. He presented the ERICA project in broad terms, emphasising the role of the EUG members and the planned EUG event. Deborah Oughton then presented the aim of the second thematic EUG event and explained the procedures to be followed for the whole two-day event. 2 Overall Objectives This second EUG event had two main objectives: 1. to provide a general discussion on risk assessment and management of ionising radiation and other environmental stressors (i.e. Day 1) ; and 2. to review a draft of the ERICA project Deliverable D4 on “Risk Characterisation Methodologies” (i.e. Day 2). The event’s agenda for Day 1 and Day 2 is shown in Appendix 1. This meeting, which was the second of a planned total of seven EUG events, consisted of EUG members, invited speakers and a limited number of ERICA Consortium participants, who represented all ERICA WPs. Those EUG members who previously expressed a wish to attend this meeting have been prioritised, but the meeting was also open to other EUG members, as space permitted. EUG members were also requested to fill in an evaluation questionnaire at the end of the meeting to help the ERICA Consortium improve future events. This report, D7b, which summarises both presentations and group discussions, will help the ERICA project in producing guidance on how decision-makers and authorities might approach the assessment and management of radiation contamination, i.e. Deliverable D8 on “Decision-Making Guidance”. Both D7b and related presentations on Part 1 have been placed on the public/results area of the ERICA website: www.erica-project.org. Presentations and background material related to Part 2 have been posted on the EUG protected area of the website, as the material is under development and discussion within the ERICA project. The final deliverable D4 will be publicly available in March 2005. 2.1 Day 1 - Ionising radiation and other environmental stressors The purpose was to identify areas of consensus and dissent regarding the alleged similarities and differences in the assessment and management of ionising radiation and other stressors. The discussions on ionising radiation and other contaminants focused on a comparison of environmental stressors and their interactions, within three main themes. 1. Biological and toxicological effects: a. biological effects of radioactive substances and other chemical stressors in the low dose range ; b. comparative environmental toxicology: towards an understanding of effects across levels of organization and complexity. 2. Dose-response models and risk characterisation: a. assessing the environmental risks of radioactive substances - a comparison with approaches for non-radioactive substances ; b. the use of Species Sensitivity Distributions to derive predicted No-effect concentrations for stable chemicals. First applications to radionuclides and effects data from FRED ; c. quantification of environmental risks. 3. Management and socio-economic issues: a. risk management: general comparison of regulation of environmental pollution ; and ERICA (D-N°: 7b) Briefing Notes from the Second Thematic EUG Event 9/42 Dissemination level: PU Date of issue of this report: 18 November 2004 b. EC Chemicals Policy: from a European to a national point of view? Case study: the Water Framework Directive - is there an implication for radioactive contaminants? A number of keynote speakers were selected to present introductions to these three themes. A draft briefing note was prepared based on the material received from the speakers and was distributed to participants prior to the meeting. 2.2 Day 2 - Contribution to deliverable D4 on risk characterisation WP2 has been working on their first deliverable, D4: “Crit ical Review on Methodologies for Risk Characterization and for Effects Testing Strategies”, due to be published in March 2005. The WP Leader was to present their efforts to date, which centres on three areas: 1. D4 overall structure and content ; 2. proposed tiered approach to risk characterisation ; and 3. overview of plans for experimental work at NLH/NRPA and IRSN institutions. Some of the material related to the above was circulated prior to the event. 2.3 Procedure to follow during the discussion groups In addition to keynote speakers, time was allocated to small, breakout group discussions, to enable a more focused dialogue between EUG and ERICA participants. A division of groups for Day 1 and Day 2 are shown in Appendix 2. The procedure was identical for both days. Each group elected their own chairperson, and the Consortium provided a secretary and a referee. Comments provided during the group discussions were not to be attributed to individuals. Members had the choice of representing themselves or their organisations. Citation, or any other form of revelation, by one group member of another group member’s opinion or assertion expressed during this part of the procedure would not be allowed. This was to be followed to enable free exchange of views. 2.3.1 Roles · Chair/Rapporteur. A group elected EUG member to guide discussion, keep to time, sum up, and report in plenary session. · Secretary. To take notes during discussion to provide any required support and assistance to the Chair in summing up and to assist in drafting the current report (ERICA consortium or EUG member). · Referee (ERICA consortium member). To get the discussion started, aid the chair if necessary, ensure every person has an opportunity to speak and keep track of time. A list of questions for each three themes was provided to help focus discussions, refer to Appendix 3.

ERICA tools, radiation protection, biota, risk assessment

ERICA Prohect ; (Contract Number: FI6R-CT-2003-508847)Project co-funded by the European Commission under the Euratom Research and Training Programme on Nuclear Energy within the Sixth Framework Programme (2002-2006) ; IMROH was an EUG partner and dr.sc. Ivica PRLIĆ was a Croatian EUG team leader