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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 Ozone

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Thursday, 
County Site Units 8-Hour Hour of Day 1-Hour Hour of Day
Outagamie Appleton ppb 49.4 06 PM 58.7 03 PM
Ashland Bad River Tribal School ppb 41.2 05 PM 51.8 03 PM
Milwaukee Bayside ppb 52.8 05 PM 58.8 04 PM
Rock Beloit-Converse ppb 65.7 06 PM 72.8 01 PM
Kenosha Chiwaukee Prairie ppb 55.7 05 PM 63.4 03 PM
Columbia Columbus ppb 60.6 06 PM 65.6 02 PM
Sauk Devils Lake ppb 64.3 07 PM 72.3 03 PM
Eau Claire Eau Claire DOT Sign Shop ppb 51.4 05 PM 61.3 02 PM
Walworth Elkhorn ppb 60.8 06 PM 68 01 PM
Fond du Lac Fond Du Lac ppb 55.5 07 PM 60.1 01 PM
Ozaukee Grafton ppb 54.1 05 PM 60.2 02 PM
Brown Green Bay UW ppb 41.4 09 PM 52.5 03 PM
Ozaukee Harrington Beach Park ppb 56.1 06 PM 60.9 02 PM
Dodge Horicon Wildlife Area ppb 57.9 07 PM 63.3 01 PM
Jefferson Jefferson-Laatsch ppb 62 06 PM 71 03 PM
Kenosha Kenosha-Water Tower ppb 52.8 07 PM 58.1 04 PM
Kewaunee Kewaunee ppb 51 08 PM 55.4 04 PM
La Crosse La Crosse DOT ppb 53.7 05 PM 61.1 03 PM
Marathon Lake Dubay ppb 62.8 07 PM 68.7 02 PM
Dane Madison East ppb 62.2 07 PM 69.1 01 PM
Manitowoc Manitowoc ppb 49.4 05 PM 55.7 03 PM
Milwaukee Milwaukee-16th St. Health Center ppb 48.1 05 PM 54.2 02 PM
Milwaukee Milwaukee-UWM UPark ppb 55.7 05 PM 61.5 02 PM
Door Newport Park ppb 42.7 04 PM 46.1 03 PM
Forest Potawatomi ppb 53.2 05 PM 58.5 01 PM
Racine Racine-Payne & Dolan ppb 57.1 05 PM 64 04 PM
Sheboygan Sheboygan-Haven ppb 52.3 06 PM 57.2 04 PM
Sheboygan Sheboygan-Kohler Andrae ppb 53.3 06 PM 57.1 03 PM
Vilas Trout Lake ppb 54.3 05 PM 61 01 PM
Waukesha Waukesha-Cleveland Ave. ppb 51.1 06 PM 58.1 03 PM