Avaliação do impacto da emissão de poluentes atmosféricos oriundos do Aeroporto da Pampulha sobre a qualidade do ar local

Abstract

Airports, including Pampulha Airport, located in Belo Horizonte (MG), can generate negative impacts on local air quality, reason why its emissions must be managed. One of the tools used to support this management is the atmospheric dispersion modeling. Thus, using the AERMOD ViewTM model, the present work aims to locally evaluate the dynamics of the dispersion of air pollutants from Pampulha Airport, comparing the modeled concentrations of CO, NO2, SO2, TSP, PM10 and PM2.5 against the standards stablished by the CONAMA Resolution 491/2018, COPAM Normative Deliberation 248/2023 and the 2021 World Health Organization Global Air Quality Guidelines. Two scenarios were considered for the modeling ("2015 scenario" and "2015 scenario + 50%"), which were based on the most updated inventory published by the environmental agency of Minas Gerais State (FEAM), which reference year is 2015. To define the air quality modeling grid in both scenarios mentioned above, a test was carried out simulating four different grid configurations in AERMOD ViewTM, in order to identify the grid configuration that consistently supported the atmospheric dispersion modeling. It was observed that the modeled concentrations in the entire domain, including the 20 discrete receptor points (DRPs), were fully within the reference standards for CO, SO2, TSP, PM10 and PM2.5. For NO2, concentrations higher than the reference standards were observed, not only in areas inside the airport, but also in DRPs outside the airport, such as DRP 19 in the "2015 scenario" for annual concentrations, DRP 1 and DRP 19 in the "2015 scenario + 50%" for 24-hour concentrations, and DRP 19 in the "2015 scenario + 50%" for annual concentrations.