Evaluación de la contaminación acústica en el Terminal Terrestre Interprovincial de la ciudad de Riobamba.

Abstract

Acoustic pollution was evaluated in the Interprovincial Terminal of city of Riobamba; highlighting the results obtained from environmental noise monitoring. To obtain data, we used a TIPO I integrating sound level meter, with frequency weighting A and slow response. Three measurement periods were performed at eight established measurement points, reporting at least 5 samples of 15 s, for 10 minutes at each point. The results show that in the three established periods the points P1 (entrance of pedestrians to the terminal) with 65.6 dB, P2 (Av. Daniel León Borja and Eplicachima) with 65.7 dB, presented a higher noise level; surpassing the permissible limits of the current Environmental Regulations that establishes as limit value 55 dB. To obtain thematic mapping of noise from the Interprovincial Terminal, the ArcGIS Geographic Information System was used by the IDW (Inverse Weighted Distance) interpolation technique. The results show that the noise produced in the terminal is a product of the sources external to it, since it is located in the central zone of the city and is limited by two main avenues in double sence of vehicular flow; therefore the economic activities and vehicular traffic that is developed in the periphery of the locality, are the direct cause of the noise generation.