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353 ST 4.3 – Gestión de residuos radiactivos
ASSESSMENT OF RADIOLOGICAL PROPERTIES OF WASTES FROM
URBAN DECONTAMINATION PROCEDURES
Neves Gomes da Silva, Diogo1*; Rua Rodriguez Rochedo, Elaine 2;
Rua Rodriguez Rochedo, Pedro1 ; Remy Davée Guimarães, Jean1
1 Universidade Federal do Rio de Janeiro (UFRJ). Brasil.
2 Instituto de Radioproteção e Dosimetria (IRD/CNEN). Brasil.
* Responsible author, email: dneves@biof.ufrj.br
One important activity associated to urban areas contaminated as a consequence of accidental
releases to the atmosphere from nuclear power plants, is that related to the management of
radioactive wastes generated from decontamination procedures. This include the collection,
conditioning, packing, transport and temporary/final disposition. The final destination is usually a
political decision and transport of packed radioactive wastes shall then depend on decisions
outside the scope of radiological protection issues. However, the simulations performed to
assess doses for the public and decontamination workers allows the estimate of radiological
aspects related to the waste generated and this characteristics may be included in a multicriteria
decision tool aiming to support, under the point of view of radiological protection, the decision
making process on post-emergency procedures. Important information to decision makers are
the type, amount and activity concentration of wastes. This work describes the procedures
planned to be included in the urban area model to account for the assessment of qualitative and
quantitative description of wastes. The results will allow the classification of different procedures
according to predefined criteria that shall then feed the multicriteria assessment tool,
considering basic radiological protection aspects of wastes generated by the different available
cleanup procedures.