Inventário de fontes veiculares para Maceió-AL: análise atual e cenários futuros

Abstract

Pollutants that are released into the atmosphere and interact with meteorological conditions determine the air quality of a region, poor air quality can cause serious problems, both for the climate and the health of living beings in general. Due to this, the present work aims to investigate the air quality in the current city of Maceió and in future projection scenarios from 2022 to 2060. We considered the pollutant emissions of carbon monoxide (CO), nitrogen oxides (NOx) and particulate matter (PM) and non-methane hydrocarbons (NMHC) according to the methodology proposed by the Environmental Company of the State of São Paulo (CETESB) where the total pollutant emissions in annual tons were calculated for each of the three scenarios presented, the scenario 1 the constant growth of the vehicle fleet for the city of Maceió, scenario 2 the replacement of a portion of cars by urban line buses and scenario 3, substitution of the use of the main fuel of gasoline by ethanol. For the first scenario, an increase of all pollutants was observed, mainly CO. Emission scenario 2 shows a decrease in the pollutant CO and NOx, but there is an increase in the other pollutants (PM and NMHC); emission scenario 3 had results close to scenario 1.