| Full text | |
| Author(s): |
Ibarra-Espinosa, Sergio
;
Rehbein, Amanda
;
de Freitas, Edmilson Dias
;
Martins, Leila
;
Andrade, Maria de Fatima
;
Landulfo, Eduardo
Total Authors: 6
|
| Document type: | Journal article |
| Source: | FRONTIERS IN SUSTAINABLE CITIES; v. 4, p. 12-pg., 2022-07-18. |
| Abstract | |
Due to coronavirus disease 2019 (COVID-19), many cities implemented strict lockdown to stop the spread of this new disease. Consequently, it was reported lower levels of air pollution due to less human activity outdoors. The changes were registered using surface monitoring stations or satellite observations. However, modeling those environmental changes has remained a challenge because of our limitations in the emissions estimation and also, for the numerical modeling itself. In this study, the vehicular emissions were estimated for March 2020 in the megacity of Sao Paulo using the Vehicular Emissions INventory model (VEIN). The emissions estimation showed an increment of VOC/NO2 downtown, due to the decrease in circulation of urban transportation and light vehicles. Then, a set of Weather Research and Forecasting models with chemistry (WRF-Chem) simulations were performed with different chemical mechanisms and initial conditions. The modeled diurnal cycles represent the variations observed in March 2020 for the periods pre-lockdown, transition, and lockdown. However, it is imperative to include other sources than vehicular to have a local and comprehensive emissions inventory. (AU) | |
| FAPESP's process: | 15/03804-9 - Environmental governance of macrometropolis paulista in face of climate variability |
| Grantee: | Pedro Roberto Jacobi |
| Support Opportunities: | Research Program on Global Climate Change - Thematic Grants |
| FAPESP's process: | 21/07136-1 - Emissions inventory of greenhouse gases from transport, dispersion in the Metropolitan Region of São Paulo |
| Grantee: | Sergio Alejandro Ibarra Espinosa |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| FAPESP's process: | 16/18438-0 - São Paulo Metropolitan Area, jointly tracking climate change and air quality - METROCLIMA-MASP |
| Grantee: | Maria de Fátima Andrade |
| Support Opportunities: | Research Program on Global Climate Change - Thematic Grants |
| FAPESP's process: | 16/10557-0 - Mesoscale convective systems over the Amazon basin: present climate and future climate change scenarios |
| Grantee: | Amanda Rehbein |
| Support Opportunities: | Scholarships in Brazil - Doctorate |
| FAPESP's process: | 21/07992-5 - Impact of climate change on Mesoscale Convective Systems over the Amazon basin |
| Grantee: | Amanda Rehbein |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |