Evaluación del dióxido de nitrógeno y su influencia en la calidad del aire en la parroquia San Francisco, del cantón Ambato

Abstract

The objective of this study was to determine the concentration of Nitrogen Dioxide (N0₂) during four consecutive weeks, taking 25 sampling points in the San Francisco Parish, in the Ambato canton, in the Tungurahua province, located in the downtown area of the city of Ambato, bounded by Maldonado Av. to the north, Juan León Mera Av. to the south, Lizardo Ruizy Av. to the east, and 12 de Noviembre Av. to the west. Based on my interest in the high rate of commercialization that leads to a high vehicular flow, whose figures will be detailed based on the weekly analysis of the points already mentioned, the main objective is to evaluate Nitrogen Dioxide and its influence on air quality. The sampling points have been considered, considering their location; the vehicles that circulate during peak hours were classified as buses, cars and trucks. The sampling tubes are responsible for collecting nitrogen dioxide; once the samples are removed,

they are taken to the laboratory for the respective analysis in the spectrophotometer, thus calculating the absorbance where the concentration of nitrogen dioxide emitted by the samples will be found. Automotive. From this investigation, it is concluded that according to the different location points distributed in the San Francisco Parish and under the use of passive samplers with the help of specialized software, there is a high vehicular flow that is related to the highest average concentration of N0₂, which implies that, based on Annex 4 of Book VI of the Unified Text of Secondary Legislation, it translates into an ALARM due to its high environmental contamination, since it becomes a critical point for the Ministry of Public Health concerning the high rate of respiratory condition.