Wisconsin, Minnesota and Indiana all have air quality alerts, while Chicago's air quality currently ranks in the "unhealthy for sensitive groups" category.

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

Air quality is unhealthier-than-average for some people Thursday as winds are blowing wildfire smoke across the Northern ...

MIchigan's air quality will be unhealthy for some groups Saturday. Check the air quality index map to see if it's good or bad ...

Air quality alerts advising people to stay indoors were issued earlier in the week and lasted through part of Wednesday morning.

An air quality map shows conditions improving in the U.S. on Friday as smoke from the Canadian wildfires subsides.

An air quality alert was issued Thursday by the National Weather Service for the entire Chicago area through Friday night.

Cities in California, Texas and Arizona are expecting air quality to become unhealthy for sensitive groups on Thursday.

This map tracks air quality near Detroit, and zoom out to see more areas. Smoke from wildfires in Canada is expected to move into Michigan.

If you're seeing a thick haze outside your window, it's likely air pollution. Here's how to find out what the air quality is near you.

Air quality in some parts of the United States is worsening as smoke from dozens of wildfires in Canada travels south, pushed by winds high in the atmosphere. Through parts of Minnesota and into ...