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Noise monitoring program
Active Air Quality Notification
  • An air quality ADVISORY for Unhealthy PM2.5 levels is in effect from 8/3/2025 12:00 to 8/4/2025 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,Pepin,Pierce,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 .

8-HR Ozone Summary

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Wednesday, 
County Site Units 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23
Ashland Bad River Tribal School ppb 23.6 22.9 22.3 21.8 21.6 21.5 21.1 21.1 21.3 21.7 22.7 23.6 24.6 25.6 27 28.6 29.9 30.8 30.7 29.5 28 26.8 25.3 23.6
Brown Green Bay UW ppb 33 31.6 29.8 27.7 26.4 25.2 23.8 22.7 22.2 22.1 22.3 22.7 23.4 24.4 25.5 26.7 27.3 27.9 27.9 27.5 27 26.4 25.8 25
Columbia Columbus ppb 30.2 28.7 26.9 25.4 24.7 23.7 22.4 21.5 21.3 21.6 22.2 23.1 24.1 25.5 27 28.4 29.5 30.2 30.6 30.5 29.9 28.8 27.3 25.4
Dane Madison East ppb 31.5 30.2 28.9 27.1 25.2 24.1 22.7 21.7 21.2 21.2 21.6 22.4 23.5 24.7 26.2 27.7 29 30.1 30.7 31 30.8 30.4 29.3 28.7
Dodge Horicon Wildlife Area ppb 33.1 31.5 29.6 27.9 26.4 25 23.6 22.8 22.6 23.1 23.7 24.4 25.6 27.1 28.9 30.6 31.8 32.3 32.3 32.2 31.8 31 29.9 28.3
Door Newport Park ppb 33.7 33.2 32.2 30.7 28.6 27 25.9 25 24.6 24.1 23.8 23.9 24.1 24.4 24.8 25.1 25.2 25 24.8 23.7 22 21 20.1 19.1
Eau Claire Eau Claire DOT Sign Shop ppb 25 24 23.1 22.2 21.9 21.8 21.8 21.5 21.4 22 23.3 24.7 26.1 27.7 29.6 31.9 34.1 35.4 35.8 35.4 34.1 32.1 27.9 23.2
Fond du Lac Fond Du Lac ppb 29.8 29.4 27.6 25.9 24.5 23.6 23 22.4 22 21.9 22.3 23.1 24.2 25.6 26.9 28.3 29.3 30 30.2 30.1 29.8 29.4 28.8 27.7
Forest Potawatomi ppb 30.1 28.1 26.3 24.9 23.8 22.8 22.1 21.9 21.7 21.6 21.8 22.3 22.7 22.9 22.8 22.8 22.9 23.2 23.2 23 22.8 23 23.5 23.9
Jefferson Jefferson-Laatsch ppb 27.6 26.9 26 25.9 25.7 24.4 23.6 22.6 22 22.2 22.8 23.5 24.6 26.1 27.5 29.1 30.1 30.6 30.4 29.7 28.4 26.6 24.8 23
Kenosha Chiwaukee Prairie ppb 29.4 27.8 26.9 26.1 25.5 24.8 23.8 23.3 23.2 23.8 24 24.5 25.5 26.6 27.9 29.1 30.2 30.7 30.6 30 29 27.7 26.1 24.5
Kenosha Kenosha-Water Tower ppb 28.1 26.5 25.8 24.8 23.9 22.8 21.7 21.4 21.3 21.7 22 23.1 24.3 25.9 27.4 28.7 29.7 30.1 30 29.3 28 26.4 24.5 22
Kewaunee Kewaunee ppb 29.7 28.9 27.8 26.2 24.4 23.2 22.5 22 22 22 22.3 23 23.9 24.8 25.6 26.7 27.4 28 28.6 28.7 28.4 27.7 26.8 25.7
La Crosse La Crosse DOT ppb 30.4 28.7 27 25.5 24.1 22.8 21.9 21 20.8 21.1 21.9 22.9 24.3 26.1 28.4 30.8 32.6 33.7 34 33.2 31.2 28.7 25.3 22
Manitowoc Manitowoc ppb 29 28.2 27.4 26.6 25.7 24.2 23.1 22.5 22.3 22.3 22.7 23.4 24.2 25.4 26.9 28.2 29.4 30.1 29.1 27.2 24.9 22.6 20.2 16.8
Marathon Lake Dubay ppb 29.9 27.9 26 24.9 24 23 22.2 22 22.2 22.8 23.6 24.5 25.4 26.4 27.6 29.1 30.8 32.3 33.4 34.1 34.4 34.4 33.8 32.3
Milwaukee Bayside ppb 31.2 30 28.9 28.1 26.8 25.6 24.8 24.6 24.4 24.7 25.3 26.1 27 28.2 29.5 30.7 31.5 31.8 31.6 30.8 29.2 26.8 24.2 21.6
Milwaukee Milwaukee-16th St. Health Center ppb 27.1 26 25.2 25 24.5 23.6 22.8 22.4 22.4 22.8 23.5 24.2 25.4 26.8 28.6 30 30.9 31.1 30.7 29.5 27.6 25.5 23.6 21.6
Outagamie Appleton ppb 31 30 28.8 27.7 26.7 25.4 23.7 22.2 21.5 21.3 21.5 22.2 23.2 24.5 26.2 27.7 28.8 29.7 29.9 29.3 28 26.7 25.6 24.5
Ozaukee Grafton ppb 32 31 30 28.2 26.6 25.3 24.1 23.6 23.6 23.8 23.6 24.5 25.8 27.4 29.1 30.7 31.9 32.3 30.9 28.5 25.7 23.2 21 18.9
Ozaukee Harrington Beach Park ppb 31.1 29.9 28.7 26.9 25 23.7 23 22.6 22.5 22.7 23.5 24.4 25.4 26.6 28 29.2 30.1 30.7 30.8 30.4 29.3 28.1 26.5 25
Racine Racine-Payne & Dolan ppb 28.8 27.7 26.7 26.1 25.6 24.8 23.7 23 22.3 22.1 22.2 22.6 23.1 24.3 26.1 27.5 28.8 29.5 29.7 29.6 29.1 28.3 27.1 25.9
Rock Beloit-Converse ppb 27.8 26.9 26 25 23.8 23 22.3 21.6 21.1 20.9 21.2 21.9 23 24.2 25.6 26.9 28 28.8 28.9 28 26.4 24.2 22.1 19.5
Sauk Devils Lake ppb 34.8 33.1 31.3 29.8 28.2 26.5 25.1 24.1 23.7 23.6 24 24.6 25.3 26.3 27.4 28.7 29.9 31 31.6 31.9 31.8 30.3 28.2 25.7
Sheboygan Sheboygan-Haven ppb 29.2 28.2 26.9 25.1 23.6 22.4 21.7 21.4 21.2 21.4 22.1 23.1 24.1 25.1 26.3 27.4 28.3 28.5 28.2 27.2 25.6 23.8 22 20.1
Sheboygan Sheboygan-Kohler Andrae ppb 30.1 28.9 27.7 26 24.3 23.3 22.4 21.7 21.5 21.8 22.4 23.3 24.3 25.5 26.8 28 28.9 29.1 28.6 27.1 24.7 21.9 19.7 17.6
Vilas Trout Lake ppb 26.4 24.6 23.5 23.1 22.7 22.3 22.2 22.2 22.1 22 22.1 22.4 22.7 22.9 23.3 23.8 24.6 25.3 25.5 25.2 25.3 25.5 25.6 25.5
Walworth Elkhorn ppb 27.6 26.9 26.2 25.7 24.8 23.8 22.7 21.8 21 20.6 20.9 21.4 22.3 23.5 24.9 26.4 27.6 28.2 28.1 27.5 26.2 24.9 23.3 21.4
Waukesha Waukesha-Cleveland Ave. ppb 25.8 24.7 23.8 23.1 22.5 22.2 21.3 20.9 20.9 21.3 22.1 23.1 24.3 25.8 27.4 28.9 30 30.5 30 29 27.8 26.3 24 21.9