Determinación de las emisiones de fuentes móviles en el cantón Riobamba aplicando el modelo computacional IVE

Abstract

This research had to do with the implementation of a vehicle emissions inventory for Riobamba city in 2019. The primary pollutants and greenhouse gases were established and the data collection, necessary to calculate the emission factors by means of the International Vehicle Emissions Model (IVE) was also carried out taking into account characteristics such as the dynamic composition of the vehicle fleet, technological distribution, cold starts distribution and others which allowed estimating the total amount of pollutant generated by each of the selected vehicle categories in kg/day and considering if the combustion process is based on diesel, natural gas or any other fuel consumption. The pollutants considered for this analysis are: carbon monoxide, volatile organic compounds, nitrogen oxides, particulate matter and sulfur oxides. The methodology consisted of field activities carried out in strategic points of the city to determine the characteristics of the vehicle fleet and vehicle activity, this was obtained by means of tours in GPS-equipped vehicles belonging to each of the four categories. In order to determine the technologies and the vehicle fleet, in-situ counting was carried out in three strategic points of the city chosen during one week. The results obtained revealed that the behavior of all pollutant emissions is similar, since high rates of carbon monoxide emissions were identified with a total of 596.95 kg/day, while the lowest emission rate was sulfur oxide with 0.22 kg/day. Thus, it is recommended to check the vehicles correctly before their corresponding registration in Riobamba county in order to avoid the circulation of vehicles with obsolete technologies, which generate a high percentage of atmospheric emissions, harmful for human health