Mace Firebaugh, C., T. . Beeson, A. . Wojtyna, and R. . Arboleda. “INCREASED PM2.5 LEVELS ASSOCIATED WITH INCREASED INCIDENCE OF COVID-19: THE WASHINGTON WILDFIRES OF 2020: Los Incendios De Washington De 2020”. Environmental Smoke, vol. 4, no. 2, Aug. 2021, pp. 49-53, doi:10.32435/envsmoke.20214249-53.