As Los Angeles grew exponentially in the mid-1900s and the car became the apple of capitalism's eye, the smog arose and ...

Gas-powered cars and diesel trucks remain the state’s largest sources of smog and soot despite decades of cutting emissions.

Prepare for soaring temperatures near 100° and smoky air. Avoid the outdoors during peak heat hours for better air quality ...

In response, governments heeded the warnings of scientists and reversed course, with the two largest holes set to be "healed" ...

So happy smogiversary, Los Angeles. We can breathe a lot easier than we used to, but don't let that fool you — we still have the worst air quality in America — a distinction the American Lung ...

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

Public Investigator asked the Department of Transportation why tests are still required, and what options exist for people ...

A Fourth of July air quality alert was issued for central Indiana due to smog levels. Residents advised to limit outdoor ...