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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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Sunday, 
County Site Units 24-Hour Hour of Day 1-Hour Hour of Day
Outagamie Appleton µg/m³ 53.4 12 PM 97.6 10 AM
Ashland Bad River Tribal School µg/m³ 94.5 10 AM 97.9 04 AM
Kenosha Chiwaukee Prairie µg/m³ 16.6 12 PM 33.6 12 PM
Sauk Devils Lake µg/m³ 39.1 12 PM 83.7 11 AM
Eau Claire Eau Claire DOT Sign Shop µg/m³ 68 08 AM 100.9 07 AM
Brown Green Bay East High µg/m³ 59.1 12 PM 106.2 11 AM
Ozaukee Harrington Beach Park µg/m³ 25.2 12 PM 39.8 09 AM
Jackson Ho-Chunk Nation-Black River Falls µg/m³ 55 10 AM 88.4 09 AM
Monroe Ho-Chunk Nation-Tomah µg/m³ 49.6 12 PM 92.6 09 AM
Dodge Horicon Wildlife Area µg/m³ 29.9 12 PM 69.8 11 AM
Marathon Lake Dubay µg/m³ 58.9 12 PM 87 10 AM
Dane Madison East µg/m³ 28.5 12 PM 72.1 10 AM
Dane Madison University Ave. Well #6 µg/m³ 33 12 PM 88.4 10 AM
Milwaukee Milwaukee-16th St. Health Center µg/m³ 24.6 12 PM 45.9 12 PM
Milwaukee Milwaukee-College Ave NR µg/m³ 21.4 12 PM 46 12 PM
Forest Potawatomi µg/m³ 87.3 12 PM 98 06 AM
Grant Potosi µg/m³ 20.8 11 AM 42.3 09 AM
Waukesha Waukesha-Cleveland Ave. µg/m³ 24.7 12 PM 49 12 PM