Impact of vehicular emissions on the formation of fine particles in the Sao Paulo Metropolitan Area: a numerical study with the WRF-Chem model Journal: Atmospheric Chemistry and Physics Vol. 16 Issue: 2 Published: 0 Categories: Author(s): Vara-Vela, A. Andrade, M.F. Kumar, P. Ynoue, R.Y. Muñoz, A.G.