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Publication
Monitorização contínua de radão (222Rn) no ar interior de um edifício localizado no Vulcão das Furnas durante 2017
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Advisor(s)
Abstract(s)
RESUMO: A monitorização contínua de radão (222Rn) no ar interior foi
efetuada num edifício localizado no Vulcão das Furnas. Este corresponde
a um dos vulcões centrais ativos da ilha de S. Miguel, sendo a desgaseifica ção neste aparelho vulcânico significativa. Dado o potencial cancerígeno
associado à exposição ao 222Rn, a acumulação deste gás no interior de
edifícios pode ser prejudicial para a saúde, podendo levar em casos
extremos ao desenvolvimento de doenças como o cancro do pulmão. Os
valores de 222Rn medidos revelam concentrações acima dos limites
recomendados pela Organização mundial de Saúde (OMS), evidenciando
que mesmo em zonas onde a concentração de 222Rn no solo não é muito
elevada, estes limites podem ser ultrapassados. A análise de regressão
múltipla e a análise espetral foi aplicada à série temporal de 222Rn, o que
permitiu identificar os parâmetros ambientais que influenciam a variação
da concentração de 222Rn no ar interior do edifício estudado.
ABSTRACT: A continuous indoor radon (222Rn) monitoring was performed in a building located at Furnas Volcano. This volcano is one of the three central active volcanoes located at S. Miguel Island, and nowadays presents several degassing manifestations at the surface. As a radioactive gas, 222Rn can represent a threat to public health when it accumulates in buildings, and in extreme cases the exposure to this gas can be responsible for the development of lung cancer. The recorded 222Rn values were above the recommended ones by the World Health Organization (WHO), reveling that, even in areas where the soil 222Rn concentration is not very high, the indoor recommended limits can be surpassed. In order to understand the statistical influence of environmental parameters on the indoor 222Rn concentration, multivariate regression and spectral analyses were applied to the recorded time series.
ABSTRACT: A continuous indoor radon (222Rn) monitoring was performed in a building located at Furnas Volcano. This volcano is one of the three central active volcanoes located at S. Miguel Island, and nowadays presents several degassing manifestations at the surface. As a radioactive gas, 222Rn can represent a threat to public health when it accumulates in buildings, and in extreme cases the exposure to this gas can be responsible for the development of lung cancer. The recorded 222Rn values were above the recommended ones by the World Health Organization (WHO), reveling that, even in areas where the soil 222Rn concentration is not very high, the indoor recommended limits can be surpassed. In order to understand the statistical influence of environmental parameters on the indoor 222Rn concentration, multivariate regression and spectral analyses were applied to the recorded time series.
Description
Keywords
Radão Perigo geológico Saúde pública Radon Geologic hazard Public health
Citation
Silva & Viveiros 2020, ‘Monitorização contínua de radão (222Rn) no ar interior de um edifício localizado no Vulcão das Furnas durante 2017’, Comunicações Geológicas, vol. 107, nº 1 (especial), pp. 157-159.
Publisher
LNEG - Laboratório Nacional de Energia e Geologia