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

Two wildfires burning in Southern California are causing dangerous smoke impacts for more than 320,000 people.

The NWS San Diego CA reported an air quality alert at 3:49 p.m. on Monday in effect until Tuesday at 6 p.m. for San ...

MRI evidence shows modest urban haze stiffens heart tissue, marking air pollution as a stealth cardiac saboteur beyond traditional risks like smoking.

There’s something in the air — more in some places than in others, apparently. In its 2025 State of the Air report, the ...

Our kids deserve to live in a country where no student is forced to inhale toxic exhaust from their own bus just to get to ...

Coastal areas in Orange County will see highs in the low to mid 70s, paired with a cool sea breeze during the afternoons.

Fire smoke appears to affect the immune system on a cellular level, researchers report in the journal Nature Medicine. People ...

The most effective filters have what’s called high-efficiency particulate air certification. Better known as HEPA filters, ...

Two NASA aircraft will carry out low-altitude flights and maneuvers over the L.A. Basin, Central Valley and Salton Sea ...

Researchers analyzed three years of attendance records for students in the school district directly adjacent to the ...