@article {petroni2020hazardous, title = {Hazardous air pollutant exposure as a contributing factor to COVID-19 mortality in the United States}, journal = {Environmental Research Letters}, volume = {15}, number = {9}, year = {2020}, pages = {0940a9}, publisher = {IOP Publishing}, author = {Petroni, Michael and Hill, Dustin and Younes, Lylla and Barkman, Liesl and Howard, Sarah and Howell, I Brielle and Mirowsky, Jaime and Collins, Mary B} }