The air we breathe gives us life-sustaining oxygen and cleanses our bodies of waste like carbon dioxide. But what happens when the air we breathe isn’t clean? For the last 20 years, the American Lung Association has tracked data from air quality monitors to compile the "State of the Air" report.
The American Lung Association's 2019 edition of the report finds that air quality in a majority of the United States got worse in 2015-2017. More cities had more days of high ozone and spikes in short-term particle pollution compared to 2018. And more cities measured increased levels of year-round particle pollution while people more suffered from polluted air. The number of people living in counties that had unhealthy air increased to nearly 141.1 million; that is an increase of more than 7 million Americans exposed to unhealthy air.
Read more about the 2019 State of the Air Report