Millions of people experienced unhealthy air in 2020

NPR estimated how many people have experienced unhealthy air this year, largely in part to the wildfires on the west coast:

An NPR analysis of U.S. Environmental Protection Agency air quality data found that nearly 50 million people in California, Oregon and Washington live in counties that experienced at least one day of “unhealthy” or worse air quality during wildfire season so far this year. That’s 1 in 7 Americans, an increase of more than 9 million people compared with 2018, the worst previous year.


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