The Chicago area recorded ozone levels of 156 late Monday afternoon. Levels above 100 are considered unhealthy. Residents ...

Additional plumes of smoke from Canada's active wildfires prompt officials to issue a statewide air quality alert on July 14.

An air quality alert for northwest Minnesota has been extended to cover the entire state and run through Monday.

The current infrastructure also isn’t set up to fully account for the shifting behavior of wildfire smoke, which can travel ...

When air quality is ranked "unhealthy for vulnerable groups" it means PM 2.5 are at levels that can cause problems for people ...

Wildfire season is upon us once again, and smoke is reducing air quality through swaths of the country. Environment Canada ...

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Wildfire season is upon us, and smoke is reducing air quality through swaths of the country. Environment Canada suggests ...

An air quality advisory that was set to last through Monday has been lifted, air district officials said. Over the weekend, ...

The DEC has issued an air quality health advisory for most of upstate New York due to elevated levels of fine particulate ...

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Plan for a hazy, hot and humid few days! Air quality will be the lowest on Tuesday. Combined with the heat, health impacts ...