A thick haze blanketed the Valley on Tuesday, reducing visibility and creating hazardous air quality conditions. The dust, ...

"Avoid all physical activity outdoors," the EPA advises at this level. According to the EPA's map, Picture Rocks and Marana ...

Researchers make visible chronic air pollution afflicting North Macedonia and spark debate about how air quality could be ...

A haze settled over the Valley on Tuesday, cutting visibility and leading to hazardous air quality. This dust rolled in ...

While widespread issues from firework pollution is not expected, air quality on a local scale can get hazardous for short ...

About 350 residents packed a public meeting Monday night regarding an Air Quality Permit for a proposed power plant near the towns of Davis and Thomas. The state Department of Environmental Protection ...

Phoenix residents awoke to a thick haze due to strong winds carrying dust across the Valley, triggering air quality alerts.

The U.S. Postal Service is saving a great deal of money with UPS as its prime air cargo vendor instead of FedEx, according to ...

Actions to reduce dust pollution, according to the Pima County Department of Environmental Quality ...

Skies over metro Phoenix were hazy and gray Tuesday morning. Here's what is causing poor air quality in Phoenix and when it ...

According to the Maricopa County Air Quality Map, several parts of the Valley have an air quality level listed in the "very ...