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* WHAT...The Minnesota Pollution Control Agency has issued an Air Quality Alert for fine particles pollution. The Air Quality Index (AQI) is expected to reach the Red or Unhealthy category. * WHERE...East central, central, west central, southeast, north central, and northwest Minnesota. * WHEN...Until 11 AM CDT Friday. * IMPACTS...Some members of the general public may experience health effects. Sensitive groups, such as people with lung disease (including asthma), heart disease, and children and older

The Wisconsin Department of Natural Resources has issued an Air Quality Advisory for the following counties: Adams, Buffalo, Clark, Crawford, Grant, Jackson, Juneau, La Crosse, Monroe, Richland, Taylor, Trempealeau, and Vernon. WHAT...The PM2.5 AQI (24-hour average) is expected to reach the Unhealthy for Sensitive Groups (Orange) to Very Unhealthy (Purple) level. Hazardous (Maroon) NowCast AQI (1-hour average) will be possible. WHERE...Statewide. WHEN...From noon Tuesday until noon Thursday.

The Wisconsin Department of Natural Resources has issued an Air Quality Advisory for the following counties: Ashland, Bayfield, Burnett, Douglas, Iron, Price, Sawyer, Washburn. * WHAT...The PM2.5 AQI (24-hour average) is expected to reach the Unhealthy (Red) to Very Unhealthy (Purple) level. Hazardous (Maroon) NowCast AQI (1-hour average) will be possible. * WHERE...Statewide. * WHEN...From noon Tuesday until noon Thursday. For Very Unhealthy (Purple) AQI:

The Wisconsin Department of Natural Resources has issued an Air Quality Advisory for the following counties: Brown, Calumet, Door, Florence, Forest, Kewaunee, Langlade, Lincoln, Manitowoc, Marathon, Marinette, Menominee, Oconto, Oneida, Outagamie, Portage, Shawano, Sheboygan, Vilas, Waupaca, Waushara, Winnebago, Wood. WHAT...The PM2.5 AQI (24-hour average) is expected to reach the Unhealthy for Sensitive Groups (Orange) to Very Unhealthy

The Wisconsin Department of Natural Resources has issued an Air Quality Advisory for the following counties: Columbia, Dane, Dodge, Fond du Lac, Green, Green Lake, Iowa, Jefferson, Kenosha, Lafayette, Marquette, Milwaukee, Ozaukee, Racine, Rock, Sauk, Sheboygan, Walworth, Washington, Waukesha. WHAT...The PM2.5 AQI (24-hour average) is expected to reach the Unhealthy for Sensitive Groups (Orange) to Very Unhealthy (Purple) level. Hazardous (Maroon) NowCast AQI (1-hour average) will be possible.

The Wisconsin Department of Natural Resources has issued an Air Quality Advisory for the following counties: Adams, Ashland, Barron, Bayfield, Brown, Buffalo, Burnett, Calumet, Chippewa, Clark, Columbia, Crawford, Dane, Dodge, Door, Douglas, Dunn, Eau Claire, Florence, Fond du Lac, Forest, Grant, Green, Green Lake, Iowa, Iron, Jackson, Jefferson, Juneau, Kenosha, Kewaunee, La Crosse, Lafayette, Langlade, Lincoln, Manitowoc, Marathon, Marinette, Marquette, Menominee, Milwaukee, Monroe, Oconto,

The Illinois Environmental Protection Agency has determined that the Air Pollution Action Day will remain in effect for the greater Chicago Metropolitan Area until midnight Wednesday Night. A Chicago Area Air Pollution Action Day is declared when weather conditions are such that widespread ozone and or particulate levels are expected to be at or above the Unhealthy for Sensitive Groups category of the Air Quality Index for multiple days. Ozone is

The officials at the Indiana Department of Environmental Management have declared an Air Quality Action Day, from midnight tonight until midnight EDT Wednesday Night. An Air Quality Action Day for ozone has been issued. Ozone levels are expected to be in the Unhealthy for Sensitive Groups range. Active children and adults, and people with respiratory disease, such as asthma should limit prolonged outdoor exposure. Here are some recommended actions that the public can take:

The officials at the Indiana Department of Environmental Management have extended the Air Quality Action Day, that is now in effect until midnight Wednesday Night. An Air Quality Action Day for ozone has been issued. Ozone levels are expected to be in the Unhealthy for Sensitive Groups range. Active children and adults, and people with respiratory disease, such as asthma should limit prolonged outdoor exposure. Here are some recommended actions that the public can take: * Walk, bike, carpool or use public transportation.

The Michigan Department of Environment, Great Lakes, and Energy (EGLE) has issued an Air Quality Alert for Wednesday July 15th, 2026, for elevated levels of fine particulate due to wildfire smoke. Pollutants within those areas are expected to be in the Unhealthy for Sensitive Groups with the potential for Unhealthy, especially north. This is a Statewide Air Quality Alert. Plumes of smoke from Canadian wildfires are expected to move into the region this week. The plumes will reach the upper peninsula this