Evaluación de los niveles de presión sonora en la zona céntrica del cantón Loja.

Abstract

Abstract: Noise pollution has become an increasingly relevant environmental issue in urban areas, due to its direct effects on human health and overall quality of life. This study aimed to assess sound pressure levels in the central area of Loja canton, a zone characterized by intense commercial activity and constant vehicular traffic. Sound measurements were conducted at ten strategically selected locations during daytime hours using a Type 1 integrating sound level meter, recording the equivalent continuous sound pressure level (Leq). The measured values were compared with the limits established in the Unified Text of Secondary Environmental Legislation of the Ministry of the Environment (TULSMA). The results showed sound pressure levels ranging from 66.19 to 69.85 dBA, exceeding the maximum permissible limit of 60 dBA for commercial areas at all monitored points. Noise maps were developed using geographic information systems, revealing a relatively uniform distribution of critical noise levels, mainly associated with urban traffic patterns and roadway configuration. Based on these findings, a mitigation program focused on traffic management and urban noise control is proposed to support local environmental planning.