Inventário de emissões antropogênicas em Campo Grande: fontes veiculares

Abstract

In metropolitan areas, vehicle emissions stand out as the main source of air pollution, and Campo Grande (MS) is among the Brazilian cities with the largest vehicle fleets, showing a sharp increase over the past 15 years. This growing fleet in the city has a direct impact on atmospheric pollutant emissions, significantly contributing to air pollution. In this context, this project aimed to develop a vehicle emissions inventory for Campo Grande, as it allows for the estimation of local emissions, identifying the main pollutants and enabling the implementation of potential reduction measures. The methodology employed follows a bottom-up approach, taking into account data on vehicle fleet characteristics, emission factors, average vehicle use intensity, and spatial distribution of emissions. The inventory includes the estimation of 28 types of atmospheric pollutants, with carbon monoxide (CO) being the main species emitted. Additionally, the analysis of hourly emission distribution revealed two peaks during the times of highest traffic flow. This approach provides a comprehensive, spatial, and temporal view of vehicle emissions, facilitating integration with air quality models and providing local authorities with a solid foundation for implementing effective vehicle emissions control strategies. In this way, it will be possible to mitigate the impacts of emissions on air quality, public health, and the local climate, contributing to a more sustainable environment in Campo Grande.