This year’s “State of the Air” Report found that ground-level ozone pollution is getting worse – strikingly worse. This ...

A new report from the American Lung Association shows that Phoenix's ozone problem is worsening, while its particulate ...

American Lung Association report found that about 156 million people live in counties plagued by high levels of ozone and ...

“Although cleanup of ozone precursor pollutants from industrial, power generation, and mobile sources has been working to ...

Or really are the natural sources of ozone such that we’re not going to be able to get much more improvement because of where we live, because of the sunlight we get, because of the hot summers ...

Multiple Texas metroplexes, including Dallas-Fort Worth, ranked among some of the worst areas for ozone pollution in the ...

Stricter air-quality rules, pushed through in the last days of the Biden administration, face an uncertain future under a ...

A new report on air quality across the U.S. offers a cloudy prognosis on the long-term health of about 156 million residents ...

About 46% of U.S. residents — 156 million people — lived in areas with unhealthy air quality that earned “F” grades from the ...

Despite improvements in air quality in past decades, 156 million Americans still breathe in too much soot or ozone, says the annual State of ... Air Act were put in place in the 1970s to govern ...

Ground-level ozone pollution breached safe limits daily across Delhi-NCR this summer, posing growing risks to respiratory ...

Baltimore County received an "F" for ozone smog, according to a 2025 report on air quality from the American Lung Association ...