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

The North Dakota Department of Environmental Quality is actively monitoring Canadian wildfires. Forecasted weather conditions ...

"Avoid all physical activity outdoors," the EPA advises at this level. According to the EPA's map, Picture Rocks and Marana ...

Environmental Quality advises everyone to use common sense when wildfire smoke adversely impacts air quality. To decrease the ...

Smoke from wildfires in Northern California and southern Oregon has settled over Northern Nevada and is worsening air quality across the region. Air quality in the Reno-Sparks area Thursday morning ...

AirNow in a description for air quality that is unhealthy for sensitive groups: "Members of sensitive groups may experience health effects. The general public is less likely to be affected." ...

The Fourth of July fireworks and wildfires have caused poor air quality in Fresno County, with some areas reaching a level 5, ...

WASHINGTON — The air quality is showing signs of improvement Saturday afternoon after starting with unhealthy air. As of noon ...

AirNow defines moderate quality as "Air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution." ...

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 ...

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