Effects of Evaporative Emissions Control Measurements on Ozone Concentrations in Brazil

Atmosphere

Maria de Fátima Andrade¹  Edmilson Dias de Freitas¹  Sergio Ibarra-Espinosa²  Eduardo Landulfo² 

[1] Departamento de Ciências Atmosféricas, Universidade de São Paulo, Sao Paulo 05508-090, Brazil;Laboratorio de Aplicações Ambientais de Lasers, Instituto de Pesquisas Energéticas e Nucleares, Sao Paulo 05508-000, Brazil;

关键词: vehicular emissions;    ORVR;    WRF-CHEM;    VEIN;    air quality;    ozone;   

DOI  :  10.3390/atmos13010082

来源: DOAJ

【 摘 要 】

In this work, the possible benefits obtained due to the implementation of evaporative emissions control measures, originating from vehicle fueling processes, on ozone concentrations are verified. The measures studied are: (1) control at the moment when the tank trucks supply the fuel to the gas stations (Stage 1); (2) control at the moment when the vehicles are refueled at the gas stations, through a device installed in the pumps (Stage 2); (3) same as the previous control, but through a device installed in the vehicles (ORVR). The effects of these procedures were analyzed using numerical modeling with the VEIN and WRF/Chem models for a base case in 2018 and different emission scenarios, both in 2018 and 2031. The results obtained for 2018 show that the implementation of Stages 1 and 2 would reduce HCNM emissions by 47.96%, with a consequent reduction of 19.9% in the average concentrations of tropospheric ozone. For 2031, the greatest reductions in ozone concentrations were obtained with the scenario without ORVR, and with Stage 1 and Stage 2 (64.65% reduction in HCNM emissions and 31.93% in ozone), followed by the scenario with ORVR and with Stage 1 and Stage 2 (64.39% reduction in HCNM emissions and 32.98% in ozone concentrations).

【 授权许可】

Unknown