University of Utah researchers believe inflammation starts a months-long process that increases risk of aneurysm rupture.

Smoke from Canadian wildfires triggered a statewide warning Friday about unhealthy air that will run through Monday morning. ...

When air quality is ranked "unhealthy for vulnerable groups" it means PM 2.5 are at levels that can cause problems for people ...

SAN FRANCISCO — The Bay Area Air District on Thursday issued an air quality advisory due to smoke from wildfires burning in ...

With smoke drifting over the Sacramento region from wildfires in the north state, air quality officials are urging capital ...

Smoke travels hundreds of miles to harm air quality far from the fire, according to the EPA’s Wildfire Smoke and Your Patient ...

Los Angeles and much of Southern California were met with a regional air quality alert on Saturday, following July 4th ...

EDT on Saturday, the National Weather Service reported an air quality alert in effect until Monday at noon EDT for Mason, ...

The Minnesota Pollution Control Agency has issued an air quality alert for fine particles pollution. South- central Minnesota ...

Smoke from wildfires burning in the northern Sacramento Valley may bring hazy skies and unhealthy air to parts of the Bay ...

An international study found that air pollution leads to more cancer-related genetic changes than secondhand smoke.