Tratamento acústico para fins de redução do ruído interno em templos religiosos

Abstract

In the 21st century, one of the major issues related to human health and well-being in urban centers is noise pollution. Because of this, there is a need for studies that reveal the sources of this type of pollution and create tools to eliminate or treat noise in order to minimize its impacts on individuals who live in these environments. Religious temples, due to inadequate acoustic insulation and inefficient acoustic treatment, generally represent one of the sources of noise pollution and excessive noise for people who are present in these environments. From the perspective of Occupational Safety, the sources of noise pollution and internal noise levels represent occupational risks to temple workers and their members. In view of this, the objective of this study is to analyze the acoustic conditioning of a religious temple and present tools to improve its performance, in order to reduce noise and mitigate its occupational risks. The methodology used in this study consisted of bibliographical research that raised scientific sources on the subject. A practical study was also developed in a religious temple in a municipality in the northern region of Paraná. After conducting this study, it was found that many religious temples are considered sources of noise pollution and excessive noise, since the noise production exceeds the levels of the evaluation criteria established in NBR 10151, which determines that it should be between 40 and 50 dB. It was highlighted that in order to keep the noise within a tolerance limit established by the current technical standards, some mitigation measures are necessary, such as the study of its acoustic behavior, actions to correct its deficiencies and instigate preventive actions. In the practical study, it was found that in order to reduce the internal sound pressure levels of the temple and consequently the external noises during services, it is necessary to improve the acoustic conditioning of the temple, with adequate acoustic absorbing devices and sound wave diffusers, reducing the reverberation time and internal noises as established in NBR 10152.