Evaluation and ranking of restoration strategies for radioactively contaminated sites.
An international project, whose aim was the development of a transparent and robust method for evaluating and ranking restoration strategies for radioactively contaminated sites (RESTRAT), was carried out under the Fourth Framework of the Nuclear Fission Safety Programme of the EU. The evaluation and ranking procedure used was based on the principles of justification and optimisation for radiation protection. A multi-attribute utility analysis was applied to allow for the inclusion of radiological health effects, economic costs and social factors. Values of these attributes were converted into utility values by applying linear utility functions and weighting factors, derived from scaling constants and expert judgement. The uncertainties and variabilities associated with these utility functions and weighting factors were dealt with by a probabilistic approach which utilised a Latin Hypercube Sampling technique. Potentially relevant restoration techniques were identified and their characteristics determined through a literature review. The methodology developed by this project has been illustrated by application to representative examples of different categories of contaminated sites; a waste disposal site, a uranium tailing site and a contaminated freshwater river.
Zeevaert
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SCK CEN, Boeretang 200, 2400 Mol, Belgium. tzeevaer@sckcen.be
Bousher
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Brendler
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Jensen
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Nordlinder
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D003365:Costs and Cost Analysis; D004781:Environmental Exposure; D004787:Environmental Pollution / Q000517:prevention & control*; D005060:Europe; D006283:Health Physics / Q000379:methods; D008962:Models, Theoretical; D011210:Power Plants / Q000191:economics; D011829:Radiation Dosage; D011834:Radiation Monitoring; D011835:Radiation Protection / Q000191:economics / Q000379:methods*; D011850:Radioactive Waste / Q000191:economics; D012984:Software; D012990:Soil Pollutants, Radioactive / Q000032:analysis
D011850:Radioactive Waste; D012990:Soil Pollutants, Radioactive