The South Coast Air Quality Management District (AQMD) has issued an ozone advisory as Southern California continues to grapple with the brutal heat wave sweeping across the region. The heat is ...

There are two different kinds of ozone that we need to understand first. There is stratospheric ozone and tropospheric ozone. Stratospheric ozone is probably the kind that pops into your head when we ...

At a time when surging AQI levels and toxic air dominate headlines, there is rare good news for the planet. The Earth’s ...

In this file photo, former Louisiana Department of Environmental Quality Sec. Chuck Carr Brown poses next to the agency's mobile air monitoring units. The officials move them around the state to ...

Environmental advocates are suggesting ways residents can lower their emissions that contribute to ground-level ozone, which can cause respiratory issues. Correction: A previous version of this story ...

PHILADELPHIA (WPVI) -- The Philadelphia area earned mixed grades on the American Lung Association's yearly pollution report card. The area scored the fewest days ever of high particle pollution.

An annual nationwide report that tracks levels of ozone smog and particle pollution issued by the American Lung Association shows good and bad news for the Augusta area. The State of the Air report ...

A relentless wave of dry heat, coupled with a recent outbreak of wildfires, is fueling a summertime scourge of the Intermountain West: the near-daily spikes in ozone and other air pollutants, ...