Avaliação dos níveis de concentração de radônio em marmorarias de Curitiba/PR.

• Autor(a) principal: Macioski, Gustavo
• Data de Publicação: 2017
• Outros Autores: Soto, Nicolli Talyta Arriagada, Mazer, Wellington, Corrêa, Janini Nicolosi
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Repositório Institucional da Universidade Federal do Ceará (UFC)
• Texto Completo: http://www.repositorio.ufc.br/handle/riufc/39399
• topic: Radônio; Radiação ionizante; Segurança do Trabalho; Marmoraria; Radon; Ionizing radiation; Occupational Safety Engineering; Marble

Radon is a radioactive gas that emanates from rocks and soils and tends to concentrate in enclosed spaces such as underground mines and homes. When radon gas is inhaled, alpha particles emitted by decay can interact with the tissue in the lungs and increase the chance of câncer in that organ. By cutting, polishing and storage parts of rocks, marble factory may be exposing their workers to this risk, once every material always present traces of radioactive minerais. The NCRP, for example, consideras normal indoor concentrations of radon until 200 Bq/m3. The aim of this study is to evaluate radon concentration leveis of 222Rn in marble shops in Curitiba-PR region. Measures of radon gas concentration were held in seven companies evaluating different working environments. The study used solid-state detectors CR-39 and from the results, it was observed that the concentrations were within the normal range. It was observed that most values were below 100 Bq/m3 and only one isolated case was between 200 and 400 Bq/m3, which could indicate the need of mitigating actions. Studies like this are important to ensuring the safety of workers exposed to natural radiation and serve as a contribution to data on radon in Brazil.