1 / 11

Decontamination and Recovery Aspects of the Fukushima Accident

Decontamination and Recovery Aspects of the Fukushima Accident. Dr. Ann McGarry Radiological Protection Institute of Ireland Chair, NEA Committee on Radiation Protection and Public Health Dr Ted Lazo OECD Nuclear Energy Agency. Content. Programme of Engagement

braith
Download Presentation

Decontamination and Recovery Aspects of the Fukushima Accident

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Decontamination and Recovery Aspects of the Fukushima Accident Dr. Ann McGarry Radiological Protection Institute of Ireland Chair, NEA Committee on Radiation Protection and Public Health Dr Ted Lazo OECD Nuclear Energy Agency

  2. Content • Programme of Engagement • International symposium – Towards the recovery of the Environment • Topics covered • Use of protective criteria for affected populations • Decontamination of land • Living in contaminated areas • Engaging the local population • Outcomes • Continuing the work

  3. Programme of Engagement • The Japanese government is extremely engaged in developing sustainable and acceptable rehabilitation programmes for all affected territories • This involves the organisation of many meetings and discussions, including national and international experts, with local officials and members of the public • This meeting was one of the first such discussions organised by the Japanese, and was supported by the NEA

  4. International symposium – Towards the recovery of the Environment • Held in Fukushima, October 2011 • To share experience and best practice • Local and international speakers • 360 participants • Organised by Japanese Cabinet Office, with cooperation from OECD NEA and IAEA; and supported by JAEA and JNES

  5. Use of protective criteria for affected populations • Evacuation where exposure is >20 mSv/year • The long-term goal post remediation is 1 mSv/year • Also need provisional goals and “temporary permissible levels” for a stepwise reduction towards long-term goal • Do not need same reference level at the same time in all areas • Factors used in exposure estimates must be realistic

  6. Decontamination of land (1) • Must have a clear assessment of radiation levels and their distribution in advance • A comprehensive justification must be undertaken for each decontamination method, to include • quantification and proposed management of waste arising • Exposure of workers • The primary goal must be to reduce doses • Must set priorities

  7. Decontamination of land (2) • A wide range of techniques is available • The cost of many techniques is prohibitive • Groundwater must be protected • Removal of topsoil is very popular, but practical measures to deal with waste not fully developed

  8. Living in contaminated areas • Importance of wide availability of monitoring data • Often the focus is on evacuation zone, but people living close by have major concerns also • The designation of zones

  9. Engaging the local population • Speed of response is crucial to building confidence and trust • Public communication is essential for a successful decontamination programme • detailed information about contamination levels • explanation of risks • understanding about waste • Decontamination techniques may be effective, but need public support • Importance of social and ethical input to decision making

  10. Conclusions • There is a lot of experience of decontamination techniques available world-wide • Even the best technical solutions will not be accepted if they are not properly explained and understood • Recovery is very dependent on public support

  11. For further information http://home.oecd-nea.org/press/2011/NEWS-07.html

More Related