Coronavirus patients in areas that had high levels of air pollution before the pandemic are far more likely to die from the infection than patients in cleaner parts of the country, according to a new nationwide study that offers the first clear link between long-term exposure to pollution and Covid-19 death rates.In an analysis of 3,080 counties in the United States, researchers at the Harvard University T.H. Chan School of Public Health found that higher levels of the tiny, dangerous particles in air kno

Source: New Research Links Air Pollution to Higher Coronavirus Death Rates – The New York Times

Study:

https://projects.iq.harvard.edu/covid-pm