Air pollution levels keep getting worse for more people in the US, according to a new report, and experts say the Trump administration’s proposed deregulation plans will make it even harder for people to get clean air.

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

The American Lung Association has revealed that nearly half the U.S. population resided in areas with dangerous levels of air pollution between 2021 and 2023.