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Noise monitoring program
Active Air Quality Notification
  • An air quality ADVISORY for Unhealthy PM2.5 levels is in effect from 7/12/2025 00:00 to 7/14/2025 12:00 for these 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,Oneida,Outagamie,Ozaukee,Pierce,Pepin,Polk,Portage,Price,Racine,Richland,Rock,Rusk,Sauk,Sawyer,Shawano,Sheboygan,St. Croix,Taylor,Trempealeau,Vernon,Vilas,Walworth,Washburn,Washington,Waukesha,Waupaca,Waushara,Winnebago,Wood .

Highest PM2.5

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Monday, 
County Site Units 24-Hour Hour of Day 1-Hour Hour of Day
Outagamie Appleton µg/m³ 7.6 11 PM 9.4 01 PM
Ashland Bad River Tribal School µg/m³ 6.9 09 PM 8.2 11 AM
Kenosha Chiwaukee Prairie µg/m³ 5.4 09 PM 6.8 01 PM
Sauk Devils Lake µg/m³ 6.1 03 PM 7 02 PM
Eau Claire Eau Claire DOT Sign Shop µg/m³ 7.6 08 PM 9 01 AM
Brown Green Bay East High µg/m³ 7.1 04 PM 8.8 04 PM
Ozaukee Harrington Beach Park µg/m³ 5.9 06 PM 7.1 04 PM
Dodge Horicon Wildlife Area µg/m³ 6.6 11 PM 8.4 11 PM
Marathon Lake Dubay µg/m³ 7 09 PM 7.9 09 AM
Dane Madison East µg/m³ 5.4 09 PM 6.2 07 PM
Dane Madison University Ave. Well #6 µg/m³ 5.7 09 PM 6.5 09 AM
Milwaukee Milwaukee-16th St. Health Center µg/m³ 8.2 11 PM 13.1 08 PM
Milwaukee Milwaukee-College Ave NR µg/m³ 6.6 11 PM 8.2 04 PM
Forest Potawatomi µg/m³ 6.2 10 PM 7.3 11 PM
Grant Potosi µg/m³ 6.2 11 PM 8.8 11 PM
Waukesha Waukesha-Cleveland Ave. µg/m³ 6.9 11 PM 8.2 03 PM