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Noise monitoring program
Active Air Quality Notification
  • An air quality ADVISORY for Unhealthy PM2.5 levels is in effect from 8/2/2025 12:00 to 8/3/2025 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,Iowa,Green Lake,Iron,Jackson,Jefferson,Juneau,Kenosha,Kewaunee,La Crosse,Langlade,Lafayette,Lincoln,Manitowoc,Marathon,Marinette,Marquette,Menominee,Milwaukee,Monroe,Oconto,Oneida,Outagamie,Ozaukee,Pepin,Pierce,Polk,Portage,Price,Racine,Richland,Rock,Rusk,Sawyer,Sauk,Shawano,Sheboygan,St. Croix,Taylor,Trempealeau,Vernon,Vilas,Walworth,Washburn,Washington,Waukesha,Waupaca,Waushara,Winnebago,Wood .

8-HR Ozone Summary

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Tuesday, 
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 19.2 19.1 18 16.6 15.7 15.2 14.7 14.6 13.6 12.9 13.4 14.5 16.1 17.6 18.8 19.7 20.5 20.4 20 19.6 18.4 16.9 15.7 15.2
Brown Green Bay UW ppb 27 26.1 25.6 25.2 24.4 22.9 21.1 20.7 20.7 21.1 21.7 22.6 24.3 26.8 30 31.8 32.6 33.2 33.3 33.1 32.6 31.8 30.3 28.2
Columbia Columbus ppb 29.6 28.2 26.6 26.1 25.6 25.3 25.6 25.9 26.8 27.9 28.9 28.7 28.5 28.3 28.2 28.8 29.2 30.1 31.3 32.5 33.5 34 33.9 32.7
Dane Madison East ppb 24.9 24 22.9 22.4 22.6 23.3 24.3 25.6 26.9 27.2 27.6 27.6 26.8 26.3 25.7 26.5 27.3 28.6 30.9 33 35.2 34.8 34.3 33.4
Dodge Horicon Wildlife Area ppb 31.4 30.8 29.7 29 29 29.1 29.2 29.2 29.7 30.1 31.3 31.9 31.6 31.2 31.2 31.8 32.9 34 35.3 36.7 38 38.9 38.2 37.3
Door Newport Park ppb 25.1 25.2 25.3 25.4 25.6 26.1 26.1 25.9 26 27.5 29.2 30.5 31.3 32.1 32.9 33.7 33.5 32.7 31.5 30.1 28.6 26.9 25.6 24.4
Eau Claire Eau Claire DOT Sign Shop ppb 28 27.4 27.3 27.3 27.2 27.2 27 24.1 22.6 22.6 23.1 23.9 25.5 26.9 28.4 30.1 31.3 32.3 32.3 31.5 29.7 27.6 25.6 23.6
Fond du Lac Fond Du Lac ppb 28.7 28.7 28 28 28.5 28.8 29.2 29.1 29.1 29.5 30.3 30.4 29.7 29.4 29.3 29.9 30.8 31.7 32.8 34 35.1 35.5 35.2 34.3
Forest Potawatomi ppb 24.6 24.3 23.6 22.4 20.9 19.4 18 17.1 16.8 16.2 16.8 18.6 20.3 22 23.7 25 25.7 25.7 26.2 25.5 24.3 23.1 21.8 20.7
Jefferson Jefferson-Laatsch ppb 30.1 28.6 26.5 24.5 23.9 23.9 23.7 23.9 24.9 26.7 29 30.7 30.8 30.2 29.9 29.9 30.2 30.5 30.7 31.3 32.1 32.7 32.7 32.4
Kenosha Chiwaukee Prairie ppb 39.1 37.3 35.6 33.6 31.3 29.1 27 25.2 24.1 24.6 26.3 28.3 30.3 31.7 32.8 33.6 34.4 34.4 33.5 32.6 32 32 31.7 31
Kenosha Kenosha-Water Tower ppb 37.5 36.4 34.6 32.2 29.3 27 25.7 24.4 23.6 24.2 25.9 28.4 31 32.2 32.3 32.9 33.2 32.8 31.6 30.3 29.5 29.4 29.3 28.1
Kewaunee Kewaunee ppb 30 29.3 28.6 28.3 28.4 27.9 27.3 27.2 27.9 28.7 29.6 30 30.4 31.6 32.8 33.2 33.3 32.6 32.4 32.4 31.8 30.9 29.7 27.5
La Crosse La Crosse DOT ppb 29.2 28.7 30.1 31.7 31.8 31.7 31.3 30.4 29.4 28.1 26.6 25.4 26 27.1 28.8 31 33.3 35.4 36.3 36.6 35.8 34.9 33.3 31.1
Manitowoc Manitowoc ppb 25.9 25.2 24.8 25.7 26 26.8 25.2 24.6 24.1 24.2 24.8 25.3 25 27.7 29.4 30 29.6 29.1 28.9 28.4 28.6 27.6
Marathon Lake Dubay ppb 24.7 27.8 28.9 28.9 29.2 29.8 30 29.6 28.7 26.1 25.4 25.6 26.8 27.5 28.2 29.7 31.2 32.3 32.7 32.7 31.9 30.8 29.2 26.9
Milwaukee Bayside ppb 33.1 33.4 32.8 31.6 31.2 31.9 31.7 31.2 30.7 30.3 31.1 32.6 33.4 33.1 32.9 33 33.2 33.5 33.6 33.5 34 34.6 35.1 35.2
Milwaukee Milwaukee-16th St. Health Center ppb 30.7 30.6 30.2 29.5 29 29 28.7 27.9 27.5 27.6 28.8 30.6 31.5 31.3 31 31.2 31.1 30.7 29.8 29.5 29.7 30.5 31.1 31.5
Outagamie Appleton ppb 28.2 27.6 26.9 25.5 23.4 22.9 22.5 21.5 20.3 20.9 21.7 23.3 25.9 26.9 28.4 29.4 31.3 32.1 32.7 33.2 33.3 32.9 31.5 29.7
Ozaukee Grafton ppb 31.1 30.8 30 29.3 29.1 29.3 29.6 29.5 29.3 29.3 30.4 31.8 32.2 32.1 32.1 32.3 32.7 33.1 33.1 33.1 33.2 33.7 33.9 33.7
Ozaukee Harrington Beach Park ppb 28.7 28.6 28.6 28.3 28 27.6 27.9 27.8 27.4 27.5 28.2 29.5 30.4 30.9 31 31.5 32.4 32.9 33.3 33.4 33.6 34 33.9 33.3
Racine Racine-Payne & Dolan ppb 37.4 37.2 36.1 34.5 32.8 31.9 31.3 29.7 28.2 27.5 28.7 30.5 31.8 31.9 31.2 31.5 31.9 31.8 30.9 30.2 30.7 31.3 31.8 32.1
Rock Beloit-Converse ppb 32.1 31 30.1 29.1 27.4 26.1 26 26.6 27.4 27.9 28.2 28.5 29.3 29.8 29.5 29 28.7 28.3 28.2 28.6 29.3 29.7 29.5 28.7
Sauk Devils Lake ppb 26.2 25.8 26.3 25.8 25.5 25.6 26.1 26.7 27.3 27.3 26.5 25.8 25.3 25.2 26 27 28.5 30.4 32.4 34.3 35.4 35.9 35.2 34
Sheboygan Sheboygan-Haven ppb 27.1 26.9 26.6 26.8 26.8 26.8 27 27.5 27.4 27.8 28.9 29.5 30 30.2 30.4 30.2 31.1 31.8 32.2 32.7 33 33.3 33 32.5
Sheboygan Sheboygan-Kohler Andrae ppb 33.7 33.5 32.8 32.3 31.5 30.4 29.5 29.1 28.9 29 29.9 30.5 31.3 31.9 32.3 32.1 32.1 32.9 33.2 32.8 32.5 32.4 31.9 30.1
Vilas Trout Lake ppb 21.6 21 20.8 20.5 19.9 19.5 19.1 18.6 17.9 18.3 19 19.6 20.8 22 22.4 22.4 23.1 23.1 22.5 21.9 20.8 19.7 19 18.3
Walworth Elkhorn ppb 30.2 28.6 27.4 26 24.1 23.7 23.8 24.1 25.1 26.4 27.1 28 29 28.6 27.9 27.9 27.8 27.7 27.9 28.1 28.8 29.9 30.5 30.4
Waukesha Waukesha-Cleveland Ave. ppb 30.2 29.3 27.9 26.3 25.6 25.1 24.6 24 23.8 23.4 23.9 26.1 26.6 25.9 25.7 26 26.2 26.5 26.7 26.7 27.4 28.4 29.1 29.4