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Noise monitoring program
Active Air Quality Notification
  • An air quality ADVISORY for Unhealthy PM2.5 levels is in effect from 8/1/2025 12:00 to 8/2/2025 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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Saturday, 
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 16.4 13.9 12.2 11.1 9.7 7.7 6.1 6.3 8.4 10.6 12.7 14.4 16.4 18.3 19.8 19.7 18.6 17.2 15.6 13.3 11.1 8.9 7 5.1
Brown Green Bay UW ppb 15.5 13.6 12.2 11 10 9.6 9.7 10.9 12.1 12.9 13.7 14.6 15.7 17 18.7 20.2 21.2 21.6 21.8 21.7 21.4 20.5 19.3 17.8
Columbia Columbus ppb 23.7 21.9 20.1 18.6 17.3 16 14.9 14.7 14.9 15.7 17.2 18.8 20.6 22.3 23.8 24.8 25 24.9 24.6 24.1 23.4 22.4 21.2 20
Dane Madison East ppb 21.1 18.4 15.6 13.8 12.2 11.5 11.3 12.9 14.6 16 18.2 19.9 22 23.7 25 25.5 25.9 26.3 25.7 24.4 22.9 21 18.8 17.1
Dodge Horicon Wildlife Area ppb 20.5 18.5 17 15.7 14.3 13 12.3 12.4 13.2 14.6 16.1 18 20 22.2 24.2 25.7 26.1 26.3 26.1 25.4 24.4 22.8 20.9 19.6
Door Newport Park ppb 12.7 10.8 10.2 10.2 10.1 10.7 12.2 13.2 14.3 15.2 15.4 15.9 17.8 19.3 20.4 21.2 21.7 21.4 20.9 20.4 18.9 17.5 16.6 16.2
Eau Claire Eau Claire DOT Sign Shop ppb 11 8.8 7.6 7.6 8.3 9.2 9.7 8.9 9.2 10.1 11.2 12.5 13.9 15.3 16.8 18.1 18.8 18.9 18.1 17.3 17.3 17.1 16.8 16.2
Fond du Lac Fond Du Lac ppb 16.6 14.6 13 11.7 11.1 11.1 11.5 13 14.4 15.4 16.7 18.2 19.6 21 22.3 22.9 23.7 24.2 24 23 21.8 20.2 18.8 18
Forest Potawatomi ppb 14.4 14.1 14.7 15 15.5 15.8 15.3 15.1 15.3 15.6 16.8 18.1 19.6 21.1 22.5 23.4 23.4 22.7 21.2 19.6 17.7 15.8 13.8 11.9
Jefferson Jefferson-Laatsch ppb 14.5 12.2 9.9 7.9 6.5 5.6 6 7.5 9.4 12.1 15.1 18.3 21.4 24.7 27.3 28.8 29.4 28.7 27.6 25.7 24.1 22.1 19.7 17.6
Kenosha Chiwaukee Prairie ppb 25.1 22.9 20.6 18.1 15.5 13 11.4 10.9 12 14.3 17.1 20.1 23.4 26.9 30.2 33.2 35 35.6 35.4 34.8 33.5 31.6 28 23.8
Kenosha Kenosha-Water Tower ppb 21.1 18.6 15.5 12.3 9.3 6.8 5 5.5 7.6 10.5 14.3 18.4 22.3 26.4 30.1 32.5 33.6 33.8 33.6 32.7 31.3 29.3 27.1 24.7
Kewaunee Kewaunee ppb 14.4 12.6 11.2 10.2 10.3 10.6 11.2 12.4 13.3 14.1 15 15.9 16.9 18 19.3 20.2 21 21.7 22.4 22.6 22 21.1 20.1 19
La Crosse La Crosse DOT ppb 19.1 16.3 13.5 11.8 11.2 9.8 9 9.1 9.7 11.1 13.4 15.9 18 21.1 23.7 25.4 26.3 26.1 25 22.9 21.2 19.7 18.5 17.3
Manitowoc Manitowoc ppb 12.2 9.7 7.8 6.9 6.2 5.2 5.5 6.3 7.6 9.2 11.1 13.2 15.8 18.4 20.1 21.1 21.4 21.2 20.8 20.4 19.5 18.6 17.6 16.8
Marathon Lake Dubay ppb 20.3 18.7 18 17.4 16.8 15.7 14.9 14.8 15 15.9 16.7 17.4 18.5 19.9 21.2 22.1 22.6 22.5 22.1 21.8 21.4 20.4 19.5 18.5
Milwaukee Bayside ppb 17.3 13.8 10.5 7.2 5.6 5.2 5.7 7.3 10 13.6 17.2 20.9 23.8 26.5 28.7 30.2 30.7 30.6 30 28.8 26.6 24 22.9 22.1
Milwaukee Milwaukee-16th St. Health Center ppb 14.5 11.7 9.1 7.1 6.2 5.9 6.7 8.6 11 14.5 18.3 21.5 24.3 26.9 28.9 30.1 30.6 29.8 28.8 27.1 25.4 23.2 21.7 20.7
Outagamie Appleton ppb 12.1 10.5 9.6 9.6 10 10.5 11 11.7 12.3 13.1 13.7 14.6 15.5 16.6 18.4 20 21 21.7 21.7 21.7 21.8 21.4 20.3 18.8
Ozaukee Grafton ppb 19.2 17.6 16.1 14.5 13.9 13.6 14.1 15.1 16.9 18.9 21.2 23.3 25.3 27.5 28.8 29.5 29.3 28.9 28.4 27.3 25.5 22.9 21.2 20.4
Ozaukee Harrington Beach Park ppb 18.4 16.2 14.8 14.1 13 12.6 12.2 12.4 13.8 15.9 17.7 19.4 21.4 23.5 25.3 26.3 26.6 26.3 25.8 24.7 23 21.7 20.5 19.7
Racine Racine-Payne & Dolan ppb 24.7 22.6 20.3 18 15.8 13.8 11.7 10.4 10.4 11.8 14.1 17.1 20.5 23.8 27.6 30.8 33.2 34.1 34.2 33.1 31.3 28.9 25.9 23.7
Rock Beloit-Converse ppb 20 17.2 14.8 12.8 10.7 8.6 7.5 7.8 8.9 11.3 14.3 17.6 20.7 24.2 27.2 29.2 30.4 30.3 29.5 28.2 26.5 24.4 22.6 20.8
Sauk Devils Lake ppb 18.9 16.2 13.5 11.1 9.1 9.4 10.9 12 13.2 15 17.2 19.5 22 22.9 23.2 23.8 24 23.5 22.8 21.3 19.3 17.2 15.5 14.2
Sheboygan Sheboygan-Haven ppb 16.7 14.9 13.3 12.3 11.7 11 10.7 11.2 12.4 13.7 15.4 17.5 19.4 21.1 22.5 23.2 23.3 23.3 22.8 21.8 20.9 20.2 19.4 18.5
Sheboygan Sheboygan-Kohler Andrae ppb 16.8 14.3 12.6 11.3 10.4 9.6 9.6 10.1 11.8 14.1 15.8 17.9 20.4 23 25.3 27.1 27.7 27.7 27.4 26.2 25.5 24.7 23.8 22.6
Vilas Trout Lake ppb 13.5 12 11.9 12.6 13.6 14.4 14.5 14.3 15.1 16.4 18.1 19.9 21.6 23 23.7 23.7 22.9 21.3 19.3 17 14.5 12.3 10.6 9.3
Walworth Elkhorn ppb 18.6 17.3 15.9 14.5 13.2 12.2 11.5 11.5 12.1 13.9 16.4 19.5 22.5 25.3 28.1 29.7 30.8 30.8 29.8 28 26.1 23.9 21.6 20
Waukesha Waukesha-Cleveland Ave. ppb 17.3 14.4 11.8 9.8 7.9 6 4.9 5.7 8 11.4 14.8 17.9 20.9 23.7 26.4 28.5 29 28.6 27.7 26.4 24.6 22.3 19.6 17.6