Estimación de las emisiones atmosféricas provenientes de fuentes móviles del cantón Guano aplicando el modelo computacional International Vehicle Emissions (IVE)

Abstract

The current research aims to estimate the atmospheric emissions generated by mobile sources from Guano county with the use of the International Vehicle Emissions (IVE) 2019 computational model. This model used emission factors, vehicle activity and fleet as main variables. For this, five vehicle categories were established, they were: Private Vehicles (VP), Taxicabs (Tx), Buses (Bs), Trucks (Cm) and Motorcycles (Mt) which driving patterns were determined from the route tracing in several socioeconomic sectors of the county by registering the speed and height permanently. These data were useful for calculating the vehicle specific power (VSP), as well as environmental variables and fuel characteristics. The vehicle fleet was determined through on-site inspections; In addition, counts were carried out in five points of the county on different types of roads, this aspect was necessary for determining the vehicle intensity. Subsequently, a spatial disaggregation was also carried out with a 1km by 1km domain and a temporal resolution of one hour based on the DROVE model and ArcMap software. Once the information per category was collected, it was necessary to register it into the interface through the IVE model where the emissions of eight atmospheric pollutants were estimated and resulted in an approximate generation of 182,338.89 total tons from which, 95% correspond to carbon dioxide (CO2). The outstanding category was the Bs with 25.6% of this pollutant; similarly, the points with the highest emission generation were located on highways and commercial areas which reflected the highest emission level at 07:00 due to the lifestyle of the population. For future studies it is recommended to carry out point sources, area and biogenic origin emission estimations which contribute to a complete evaluation of the air quality in the county.