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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 3 12 AM 3.8 01 AM
Ashland Bad River Tribal School µg/m³ 2.6 10 AM 3.1 12 AM
Kenosha Chiwaukee Prairie µg/m³ 3.2 12 AM 3.3 11 PM
Sauk Devils Lake µg/m³ 3.4 12 AM 3.5 10 AM
Eau Claire Eau Claire DOT Sign Shop µg/m³ 3.5 06 AM 4.1 06 AM
Brown Green Bay East High µg/m³ 3.4 12 AM 3.5 07 AM
Ozaukee Harrington Beach Park µg/m³ 3 12 AM 2.5 12 AM
Dodge Horicon Wildlife Area µg/m³ 3.1 12 AM 4 12 AM
Marathon Lake Dubay µg/m³ 2.8 12 AM 4 01 AM
Dane Madison East µg/m³ 3 12 AM 3.2 12 AM
Dane Madison University Ave. Well #6 µg/m³ 3.7 12 AM 6.1 05 PM
Milwaukee Milwaukee-16th St. Health Center µg/m³ 3.5 12 AM 6.5 06 AM
Milwaukee Milwaukee-College Ave NR µg/m³ 3.6 12 AM 3.7 08 AM
Forest Potawatomi µg/m³ 2.2 12 AM 2.4 12 AM
Grant Potosi µg/m³ 3.9 12 AM 3.5 10 PM
Waukesha Waukesha-Cleveland Ave. µg/m³ 3.2 10 PM 7.5 06 PM