Página 342 - irpa

342 ST 4.2 – Emergencias radiológicas y nucleares
APPROACHES FOR OCCUPATIONAL EXPOSURES DURING THE
DECONTAMINATION OF URBAN AREAS
Neves Gomes da Silva, Diogo1*; Rua Rodriguez Rochedo, Elaine 2;
Remy Davée Guimarães, Jean1; De Luca, Christiano1
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
The occurrence of various accidents involving radioactive material and the performance of the
staff responsible for the radiological protection of the public have highlighted the need for prior
planning for the assessment of public exposure and pre-defined guidelines for the application of
more appropriate protective and remediation measures. This work is part of a project which
aims to develop a multi-criteria tool to support decision-making processes in cases of nuclear or
radiological accidents in Brazil. It describes the development of a model to assess occupational
exposure related to decontamination procedures for the remediation of urban areas. Numerical
values for model parameters were mainly based on previous developed works within the same
project that includes a database describing main features of different procedures that may be
use during the recovery phase after accidents and the definition of standard scenarios to
perform simulations on accident consequences with focus on doses to members of the public.
The model defined for estimating occupational doses due to decontamination procedures shall
be included in the multi-criteria tool under development, in order to assess the effects of
application of decontamination procedures in occupational exposure as compared to the
averted doses to members of the public due to same procedure.