RADIAÇÃO ULTRAVIOLETA PARA A INATIVAÇÃO DE MICRORGANISMOS EM AMBIENTES PÚBLICOS

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DOI:

https://doi.org/10.29384/rbfm.2022.v16.19849001605

Palavras-chave:

Radiação Ultravioleta, Inativação de vírus, Inativação de bactérias, descontaminação de ambientes

Resumo

O objetivo deste estudo é implantar e caracterizar radiometricamente um sistema de irradiação de ambientes empregando-se lâmpadas de radiação ultravioleta do tipo C (UV-C) como alternativa para o controle da propagação de microrganismos. A pandemia de Covid-19 (Coronavirus disease 2019) tornou necessário o emprego de medidas sanitárias para conter a propagação do SARS-CoV-2 (Severe Acute Respitatory Syndrome Coronavirus) na população. Dar-se-á destaque, neste trabalho, ao sistema de segurança e à radiometria, visando à inativação dos microrganismos e o limite de exposição do público. Foram instaladas 3 lâmpadas de UV-C de 30 W numa sala de aula de 49 m2. Os resultados mostram valores de densidade de potência superiores a 0,0129 mW cm-2 na sala. O tempo de exposição necessário para a inativação dependerá da resistência intrínseca de cada microrganismo e do percentual de inativação desejado. O sistema proposto é uma estratégia sanitária adicional para conter a dispersão, não apenas do coronavírus SARS-Cov-2, mas também de outros microrganismos patogênicos, demonstrando que a radiação UV-C pode ser utilizada como uma importante ferramenta para controle de epidemias.

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Publicado

2022-09-11

Como Citar

Bachmann, L., & Ubida Leite Braga, G. (2022). RADIAÇÃO ULTRAVIOLETA PARA A INATIVAÇÃO DE MICRORGANISMOS EM AMBIENTES PÚBLICOS. Revista Brasileira De Física Médica, 16, 605. https://doi.org/10.29384/rbfm.2022.v16.19849001605

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