Benefícios das novas fases do PROCONVE para veículos leves, considerando as emissões de abastecimento veicular nas regiões metropolitanas do estado de São Paulo

Abstract

In the period from 2006 to 2018, the analysis of vehicle emissions data calculated with the methodology of CETESB -São Paulo State Environmental Agency, in São Paulo Metropolitan Area (SPMA), demonstrates the reduction of emissions by 52% for carbon monoxide (CO), 51% for non-methane exhaust hydrocarbons (NMHCexha), 64% for non-methane hydrocarbons by evaporative emissions (NMHCevap), 38% reduction for nitrogen oxides (NOx) and 59% for particulate matter (MP). However, vehicle refueling emissions increased by around 38% in the same period, due to the lack of regulation. CONAMA Resolution 492/2018 establishes the new L7/L8 phases of PROCONVE, where maximum fuel vapor emission limit is fixed at 50 mg.L -1 , during the filling of fuel tank. The objective of this work is to estimate the fuel vapor emissions that can be avoided by the establishment of the new limit, with occupational and environmental benefits.AEA -Brazilian Society of Automotive Engineering -SIMEA 2021 fleet in 2018, consisting of categories of Otto cycle engine light-duty vehicles and Otto and Diesel cycles engines light-duty trucks, motorcycles, buses and heavy-duty trucks. Therefore, social isolation and consequent decrease in vehicular activity, in this period, contributed to the drop in vehicle pollutant emissions in São Paulo city and its metropolitan area. Thus, it is essential to identify sources of pollution and obtain emissions estimates of stationary and mobile sources in this period.