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Year: 2013  Vol. 17   Num. Suppl. 1  - Print:
URBAN NOISE AND THE ASSOCIATED IMPLICATIONS IN MARÍLIA - SP
Author(s):
Ariane Barros Oliveira, Heraldo Lorena Guida, Isabella Bonamigo da Silva, Moniane Aparecida Sumera
Abstract:

OBJECTIVE: To determine the sound pressure levels in public parks in the city of Marilia SP, and to check if the noise levels violate the NBR 10151 standard. Methodology: We evaluated the noise levels of urban roads extending from the city center of Marilia SP for 2 days, over 3 time-points during peak hours, between 12:00-13:30. We used a Svantek dosimeter (SV102) to analyze the octave band noise, equivalent noise level (Leq), and chronic noise levels. Results: During the 2 days of the study, average noise level on the first street was 105.8 dB(A), with Leq 73.0 dB(A) and minimum and maximum values measured respectively as 58.3 and 91.2 dB(A). The average noise level on the second street was 106.2 dB(A) and Leq 72.2 dB(A), with minimum and maximum values of 60.4 and 90.9 dB(A). For the last street studied, the average noise level was 73.5 dB(A) and Leq of 72.7 dB(A) with minimum and maximum values of 59.2 and 91.6 dB(A). Even when the additional noise during peak travel times is eliminated, these sound pressure levels were higher than those recommended by NBR 10151. CONCLUSION: The results show that for the time-points measured, the sound pressure levels at the center of the city of Marilia are above those recommended by the current regulations. We recommend intervention and prevention work to minimize the noise impact on city inhabitants.

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