A water firm is using technology worth £20m for the first time in the UK to pump ozone gas into a river to reduce pollutants.

Colorado is now in severe violation of two federal ozone pollution standards, and it must find a way to reduce that pollution ...

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

An air quality alert will go into effect for the Phoenix metropolitan area on Wednesday amid concerning ozone levels.

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

Out of the California cities that ranked the worst for ozone and particle pollution in 2025, the Fresno and Sacramento ...

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

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

San Diego's ozone pollution is among the worst in the U.S., making it one of the smoggiest areas in the country, according to ...

Rising surface ozone levels, driven by climate change and rising temperatures, are worsening India’s pollution crisis, with ...

New Jersey has some troubling grades in the State of the Air report from the American Lung Association — and the main ...

Lake City is in the top ten for worst ozone pollution in the U.S., according to the American Lung Association.