Track and cross-country runners at Utah's universities say they notice bad-air days along the Wasatch Front — and sometimes ...

Toxic smoke and dangerous particulate pollution are spreading far beyond the flames, leaving air quality at unhealthy levels ...

Calculating air pollution from wildfires and other events has become more complicated. That doesn’t mean it’s necessarily ...

A new grassroots effort just started tracking pollution in. Learn more, including how you can get involved, here.

The air has improved in the LA region as firefighters get blazes under control, but there are questions about how safe the ...

See how cold it will be by using our interactive tracker. One major implication ... from the only ones facing health risks from poor air quality. Even the fittest and most well-trained athlete ...

The Border 2 Fire, which flared to life yesterday afternoon near Otay Mountain, has now grown to over 5,000 acres. The ...

Air quality in Pittsburgh is improving, according to year-over-year data. Why it matters: Long-term exposure to poor air quality is harmful to your health and has been a problem in Pittsburgh for ...

Wear a tight-fitting N95 mask at the bare minimum, but a P100 is better, experts say. Wear long sleeves, eye protection, closed-toed shoes and cut-resistant gloves. Clean or decontaminate anything ...

There's confusion over how safe air quality is in L.A. as fires continue to burn, spewing wildfire smoke and toxins. We look at air quality readings, what's real and what's not and what people can do.

People are tracking the impact of congestion pricing across the region.  But conditions on the roads and the rails aren’t the only factors to watch. Some ...