São Paulo State University (UNESP) - Institute of Science and Technology of Sorocaba, Avenida Três de Março, 511 - Alto da Boa Vista, Sorocaba, São Paulo, 18.087-180, Brazil.
Federal University of Paraná - Laboratory of Environmental and Industrial Acoustics and Acoustic Comfort, Curitiba, Paraná, Brazil.
Environ Monit Assess. 2024 Feb 14;196(3):267. doi: 10.1007/s10661-024-12391-x.
Noise pollution has become a public health problem in several countries worldwide. Noise maps are tools used in many cities, mainly on the European continent. In other regions, they are used in smaller areas, and few studies focus on hospital areas, considered noise-sensitive zones. In this context, this study aimed to perform sound measurements and noise maps for the day and night periods in the surroundings of three hospitals in Sorocaba, Brazil. Sound measurements occurred around the three hospitals based on NBR 10151 and ISO 1996 standards. The noise maps were drawn up using a calculation model based on ISO 9613-2. Results showed that the sound measurement points around the hospitals had levels above those recommended by the Brazilian standard for sensitive areas (L 50 and 45 dB for day and night, respectively). The acoustic maps showed high sound levels on all faces of the hospital buildings, both during the day and at night. The worst scenario concerned the vicinity of the roads with the highest flow and speed of vehicles. We concluded that three different hospitals in the city have high sound levels in their surroundings above the recommended for sensitive areas.
噪声污染已成为世界上多个国家的公共卫生问题。噪声地图是许多城市（主要是欧洲大陆）使用的工具。在其他地区，它们仅在较小的区域使用，并且很少有研究关注被认为是噪声敏感区的医院区域。在这种情况下，本研究旨在对巴西索罗卡巴的三家医院周围进行昼夜声级测量和噪声地图绘制。根据 NBR 10151 和 ISO 1996 标准，在三家医院周围进行了声级测量。噪声地图是根据基于 ISO 9613-2 的计算模型绘制的。结果表明，医院周围的声级测量点的噪声水平高于巴西标准对敏感区域的建议值（白天和夜间分别为 L 50 和 45 dB）。声学地图显示，医院建筑物的所有面在白天和夜间都有较高的声级。最糟糕的情况是与流量和车速最高的道路附近。我们得出结论，城市中的三家不同医院周围的环境噪声水平高于敏感区域的建议值。
