The index rates how clean or polluted the air is each day. The EPA uses this measure to keep tabs on five kinds of air pollutants. The main concern from the wildfire smoke is fine particle pollution, ...

WELL, GOOD EVENING MIKE. AND YEAH, IT’S NOT JUST A HOT DAY HERE IN THE CITY OF PITTSBURGH AND ACROSS WESTERN PENNSYLVANIA, BUT ALSO A LITTLE BIT MORE DIFFICULT TO BREATHE FOR SOME SENSITIVE GROUPS ...

If you value independent local news, become a sustainer today. Your gift could help unlock a $1M challenge. Angelenos still bothered by the smell of smoke may be surprised to see that Air Quality ...

Air quality in Los Angeles has improved as the Palisades and Eaton wildfires get under control. But as the fires burned through houses, cars and industrial areas, they spewed out vast amounts of smoke ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. The U.S. Air Quality Index (AQI) is the ...

An air quality alert continues for the entire Chicago area Friday, with poor air quality due to smoke from Canada wildfires expected to stick around all day and even into Saturday, the NBC 5 Storm ...

Smoke from wildfires raging in Canada has drifted into the United States, affecting air quality as far south as Florida and creating a "very unhealthy" situation in parts of Minnesota on June 3, ...