The Valley has seen decades of big business deals and population growth. A yearslong fight over air pollution could now ...

The Phoenix area's long-standing ozone pollution issues could have serious impacts on local economic competitiveness and ...

The EPA's decision on the Valley's ozone nonattainment issue could have big impacts on public health and the local economy.

Fires and agricultural soils can rival cars and factories in emitting chemicals that lead to ozone, making it hard to meet air quality standards.

Researchers with the National Oceanic and Atmospheric Administration claim that if you can smell food cooking, it’s probably ...

A recent University of Utah study found the U.S. Environmental Protection agency is leaving chunks of people out of air ...

Exposure to Air Pollution Associated With More Hospital Admissions for Lower Respiratory Infections Feb. 3, 2025 — Long-term exposure to PM2.5, PM10, NO2 and ozone (O3) air pollution is ...

Arguments over the proper jurisdiction for cases related to ozone pollution and biofuel mandates proved complicated for the ...

Ozone levels in the southeastern counties are indeed elevated, and that’s bad for the health of people living here. Blaming ...

a different type of air pollution. On Wednesday, he publicly asked Kelly to send over a catalog of requests for his agency — a list that is almost certain to include pausing the ozone ...