COVID-19 #PM2.5
A national study on long-term exposure to #air #pollution and #COVID-19 mortality in the United States
▻https://projects.iq.harvard.edu/covid-pm/home
Conclusions: A small increase in long-term exposure to PM2.5 leads to a large increase in COVID-19 death rate, with the magnitude of increase 20 times that observed for PM2.5 and all-cause mortality. The study results underscore the importance of continuing to enforce existing air pollution regulations to protect human health both during and after the COVID-19 crisis.