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, ...

Check the Air Quality Index (AQI) in your city and stay informed about the air quality levels, from good to severe. Take ...

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 ...

(WLUK) — Hazy skies and poor air quality continue to impact Wisconsin, driven by smoke from Canadian wildfires. This phenomenon is becoming more frequent compared to a decade or two ago, as wildfire ...

This story is free to read because readers choose to support LAist. If you find value in independent local reporting, make a donation to power our newsroom today. Angelenos still bothered by the smell ...

Smoke from Canadian wildfires is once again impacting air quality in the Chicago area, with air quality index readings Thursday morning in the "unhealthy" category for some suburbs, according to ...

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 ...

How to find Florida's daily Air Quality Index numbers, where Florida ranked nationally for air quality and how poor air ...