https://www.sciencedaily.com/releases/2023/06/230621121040.htm > The study, "Quantifying the Premature Mortality and Economic Loss From Wildfire-Induced PM2.5 in the Contiguous U.S.," published in Science of the Total Environment. > "We think of automobile tailpipes and factory emissions polluting our air," said Oliver Gao, professor of civil and environmental engineering at Cornell University and a senior author on the study. "We don't necessarily think about air pollution from natural sources like wildfires.