Evaluación de la contaminación acústica generado en los Mercados de la ciudad de Tena provincia de Napo

Abstract

The aim of the current research was to evaluate the noise pollution generated in the markets located in the Central and South part of Tena city, Napo Province, in which a survey baseline on noise information was applied for each study area, determining the minimum number of monitoring points, parameters, intervals and measuring time, as well as the criteria for the location of the sound level meter and the favorable weather considerations for the environmental noise monitoring. These provisions are called methods and techniques for data collection, which describe the sound pressure levels in each market. The data collected during a week were tabulated and compiled through the use of computer tools whose mathematical calculation was based on the application of logarithmic averages of specific sound pressure levels and a reference of maximum and minimum. These were evaluated and compared with the 097-A Ministerial Agreement on the reform of Book VI, Annex V. The average records revealed values exceeding the permissible limits described by this standard on the commercial land use, in which it was determined that most of the noise (66. 39 decibels) is generated by the Central Market in the afternoon, while the greatest amount of noise (65.53 decibels) is generated by the South market in the morning. This acoustic evaluation allowed designing the elaboration of the noise cartography using interpolation tools such as the Inverse Distance Weighting; in addition, prevention and control measures were proposed for this physical phenomenon present in this research. In order to have an effective monitoring of the environmental noise it is recommended to carry out a permanent calibration of the equipment before and after each measurement.