Análise do ruído ocupacional e de ambientes externos próximos às obras de uma rodovia brasileira no estado de Minas Gerais e da Bahia

Abstract

Among the possible impacts caused by entrepreneurship is the increase in noise levels, which impairs the quality of life of both residents and workers. In this way, continuous monitoring and noise limits are established through NBR 10.151 / 2000, NHO-01, NR-7, NR-9 and NR- 15. The objective of this study was to evaluate the noise level of workers on the construction site during the work day, as well as the environmental noise caused by the works at the residences close to the work fronts and construction sites. The analysis performed was based on NBR 10.151/2000 and NHO-01, and realized by decibelmeter MSL 1354 from Minipa. Through these analyzes it was verified that the noise levels in the residences closest to the fronts were above the limit established by NBR 10.151 / 2000. Regarding the evaluated workstations, none of these presented values of average noise levels higher than those established by the NR-15, emphasizing that the noise analysis occurred with the isolated driver's cab. Thus, it is recommended to implement panels close to the residences located on the work fronts and that the driver of the machines always work with the isolated cabin in order for these actions to mitigate the exposure to noise.