Milwaukee has the 2nd worst air quality in the U.S. on June 5, per NYT. An air quality advisory across the state has also ...

The Illinois EPA declared an Air Pollution Action Day in the Chicagoland area. Find out which counties are affected and what you should look out for.

Air quality alerts and advisories have been issued in multiple states as Canadian wildfire smoke continues to spread.

New York City faces another air quality alert Thursday, along with some of the surrounding area. The alert will be in effect ...

Ground level ozone will impact the Connecticut air quality Thursday as temperatures may reach 90 degrees for the first time this season.

The U.S. Air Quality Index (AQI) is the Environmental Protection Agency’s tool for reporting outdoor air quality and health.

Plumes of smoke are blanketing large swaths of the U.S. and parts of Europe, presenting risks for those breathing it. The ...

Smoke from Canadian wildfires began to worsen air quality in the eastern U.S. on Wednesday as several Midwestern states ...

Canada is having another bad wildfire season, and more than 27,000 people in three provinces have been forced to evacuate.

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