COVID-19 Pandemic: Impacts on Air Quality during Partial Lockdown in the Metropolitan Area of São Paulo oleh Débora Souza Alvim, Dirceu Luis Herdies, Sergio Machado Corrêa, Luana Santamaria Basso, Bushra Khalid, Gabriella Fernandes Prazeres Silva, Gabriel Oyerinde, Nicolli Albuquerque de Carvalho, Simone Marilene Sievert da Costa Coelho, Silvio Nilo Figueroa