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

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

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

Microplastics get into your body through food, water, and air, says Stephanie Wright, PhD, a senior lecturer in environmental toxicology at Imperial College London. Given the amount of air humans ...

The American Lung Association gives Yakima a grade F as one of 23 most polluted cities in the U.S. for particle pollution.

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

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

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

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