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

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

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

Smoke travels hundreds of miles to harm air quality far from the fire, according to the EPA’s Wildfire Smoke and Your Patient ...

The smaller particles could in fact be more harmful as they can get through the body's natural defenses and cause significant health problems.

The Air Quality Health Index rating for Toronto was over 10, or "very high risk,"from wildfire smoke on Monday morning. Chris Young/The Canadian Press ...

Air quality across Minnesota was pretty bad this past weekend. It was so bad that it was ranked as some of the worst in the ...

This map blends data from regulatory monitoring data operated by South Coast AQMD, hundreds of fine particle pollution sensors and a forecast model to generate air quality index values at more ...

Most of Minnesota and parts of Montana, North Dakota and Wisconsin were ranked “unhealthy” for air quality on a U.S.

The high school activities associations for North Dakota’s three neighboring states — Minnesota, South Dakota and Montana — ...