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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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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 31.1 30.6 28 26.3 25.4 24.5 23.6 23.2 22.3 21.5 21.3 21.2 21.3 21.7 22.1 23 23.9 24.4 24.7 24.9 24.9 24.8 25.2 24.6
Brown Green Bay UW ppb 22.5 21.3 20.3 20.2 21 21.3 21.6 21.9 22.4 23.3 24.5 26 27.6 28.7 29.9 31.2 32.4 33.7 34.8 35.4 35.1 34.7 34.2 33.7
Columbia Columbus ppb 21.5 22.7 24.5 25.2 25.5 25.8 26 26 26.2 26 25.7 25.9 26.5 27.8 29.3 30.9 32 33.2 34.2 34.4 33.7 32.8 32 31.1
Dane Madison East ppb 24.5 26.5 28.3 29.5 30 29.8 29.8 29.5 28.8 27.7 26.9 27.1 27.4 28.6 30.1 31.5 32.6 33.4 34 34.5 34.8 34 33.3 32.5
Dodge Horicon Wildlife Area ppb 23.2 23.7 24.6 25.9 26.6 26.8 26.7 26.6 26.9 27.5 28.2 28.5 29.1 30 31.5 33 34 35 35.7 36.2 36.2 35.9 35.2 34.2
Door Newport Park ppb 31.6 30.5 28.8 27 25.8 25.3 25.6 26.3 26.9 26.8 26.9 27.4 28.3 29.4 30.4 31.7 32.4 32.7 33.3 34.2 35.3 35.8 35.3 34.4
Eau Claire Eau Claire DOT Sign Shop ppb 28.5 26.1 25 23.6 22.4 21.2 20.3 19.5 19.1 18.9 19.3 20.4 22.3 24.7 26.9 29.1 30.6 31.9 32.3 32.3 31.2 29.7 28.1 26.4
Fond du Lac Fond Du Lac ppb 22.7 22.3 23.4 24.8 26.6 27.7 27.7 27.4 27.7 28.3 28.7 28.9 28.8 29.1 30.2 31.6 32.4 33.2 34.4 34.7 34.3 33.5 31.9 30.3
Forest Potawatomi ppb 28.7 28.1 27.9 27.8 27.6 27.5 27.6 27.4 27.5 27.2 26.5 25.9 25.3 25 25.6 26.9 28.5 30.7 32.1 32.7 32.3 32 32.1 31.3
Jefferson Jefferson-Laatsch ppb 21.2 22.1 23.4 25 25.7 26.1 25.9 25.9 26 26.6 27.2 27.4 28.2 29.1 30.7 32.3 33.6 33.9 33.6 32.5 31.3 30.9 29.6 28.6
Kenosha Chiwaukee Prairie ppb 27.3 25.5 25 24.3 23.4 22.6 22.7 23.6 24.6 25.7 26.9 28.5 30.3 32.4 33.9 34.6 35.1 35.4 35.5 34.9 33.9 32.8 32 30.7
Kenosha Kenosha-Water Tower ppb 25.2 24.1 23.4 22.2 21.1 20.4 20.6 21.3 22.6 23.9 25.4 27.3 29.7 31.9 33.3 34.1 34.8 35.4 35 34.1 33 32 31.2 29.7
Kewaunee Kewaunee ppb 26.1 24.4 23.4 23.4 23.6 24.2 25.2 25.3 25.6 26.1 27.1 28.1 29.5 30.8 31.1 31.8 32.6 33 33.1 33.1 32.9 32.2 31.5 30.7
La Crosse La Crosse DOT ppb 30.9 29.2 25.6 21.5 18.6 17 16.2 15.9 15.2 15.4 16.8 19.6 22.7 25.4 28 30.2 32.4 34.3 35.5 36.1 35.9 35.1 33.6 32.2
Manitowoc Manitowoc ppb 22.1 21.3 20.9 21 21.4 22.3 22.8 23.2 23.9 24.8 25.9 26.9 28 29.2 30.3 31.3 32.2 32.4 32.4 32.2 31.7 31.6 30.9 29.9
Marathon Lake Dubay ppb 22.3 23.4 24.1 24.6 25.2 25.9 26.3 25.5 24.5 23.8 23.9 24.6 25.6 27.2 28.9 30.6 32.1 33.4 34.5 34.5 34.6 34.1 33 31.5
Milwaukee Bayside ppb 25.5 25.3 25.5 25.3 25.7 25.4 25.1 25.4 25.5 26.5 27.6 29.5 31.3 33.3 35.2 36.4 36.7 37.4 37.3 36.5 35.9 35.1 33.9 32.7
Milwaukee Milwaukee-16th St. Health Center ppb 24 24.6 25.3 25.3 25.1 24.6 23.9 23.8 24.2 25 26.1 27.7 28.5 30.3 32 33.3 34.5 34.9 34.3 32.7 31.9 31.1 29.9 28.5
Outagamie Appleton ppb 20.2 19.6 19.7 20.5 21.8 22.5 22.7 23.1 24 24.8 25.8 26.4 26.8 27.6 28.9 30.4 31.6 32.6 33.1 32.8 32.4 32.2 32.1 31.9
Ozaukee Grafton ppb 24.7 24.7 24.8 25.3 25.5 25.4 25.1 24.9 25.2 25.8 26.7 28.1 29.8 31.3 32.6 33.6 34.6 35 35.2 35.6 35.6 35.1 34.4 33.4
Ozaukee Harrington Beach Park ppb 23.1 23 23.4 23.9 24.5 24.3 24.4 24.5 24.7 25.4 26 27.1 28.7 30.4 31.7 32.6 33.6 34.2 34.4 34.7 34.7 34.3 33.3 32.4
Racine Racine-Payne & Dolan ppb 27.4 27.1 26.2 25.2 24.3 23.5 23.3 23.2 23.2 23.7 24.8 26.3 28.3 30.4 31.9 33 33.9 34.7 34.7 34.1 33.1 31.9 30.8 29.7
Rock Beloit-Converse ppb 21.9 21.8 22.1 22.2 22.1 22.5 23 23.1 23 23.7 24.2 24.9 26.2 27.6 29.5 31.4 32.9 33.5 33.6 33.4 33 31.8 30.4 29
Sauk Devils Lake ppb 26.6 28.6 29.3 29.8 29.7 29.5 29.2 28.1 26.5 25.2 25.4 25.1 25 26.5 28.2 30 32.7 34.9 36.5 36.5 36.5 36.9 37 36.5
Sheboygan Sheboygan-Haven ppb 22.7 22.5 22.9 23.9 25.5 25.6 26 26.3 26.2 26.5 27 27.5 27.9 29.3 30 31 32 32.6 32.7 33.1 32.9 32.4 31.6 30.4
Sheboygan Sheboygan-Kohler Andrae ppb 22.4 21.6 21.5 21 21.5 22.3 23.1 23.5 23.8 24.6 25.6 27.1 28.6 29.9 30.9 31.9 33 33.5 33.5 33.8 33.7 32.8 32.1 31.3
Vilas Trout Lake ppb 27.3 26.7 27.5 28 28.2 28.3 28.3 27.9 27.4 26.6 25.1 25.1 25.5 25.8 26.4 27.5 29.3 31 31.6 30.9 30.3 29.9 29.4 28.2
Walworth Elkhorn ppb 24.2 23.3 22.8 22.5 22.5 22.8 23.1 23.4 23.8 24.5 25.6 27 28.3 29.2 30.2 31.8 33.1 33.6 33.2 32.3 31.6 30.8 29.8 28.5
Waukesha Waukesha-Cleveland Ave. ppb 21.7 21.8 22.3 22.6 22.3 22.1 21.6 21.5 22 23 24.5 26 27.4 28.7 30.1 31.6 32.6 33 32.7 31.8 30.7 29.5 28.6 27.3