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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 .

8-HR Ozone Summary

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Monday, 
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 14.2 11.2 8.9 6.7 4.4 2.6 2.3 4.2 6.8 9.7 12.8 16.2 17.3 20.2 22.8 23.6 24.5 25.2 25.4 25.3 24.8 24.1 22.8 21.4
Brown Green Bay UW ppb 24.4 22.6 20.8 19.1 18.3 17.1 16.4 16.5 17.2 18 19.2 20.8 21.5 23 24.3 25.6 26.2 26.6 26.5 26.3 26.3 26.5 26.7 26.4
Columbia Columbus ppb 30.3 27.5 25.7 24.4 23.5 21.2 20 19.6 19.9 20.8 22.9 25.3 26.8 30 32.7 35 36.7 37.7 37.6 36.7 35.1 32.6 29.9 26.6
Dane Madison East ppb 37.7 35.4 32.5 30.3 29.1 26.7 24.5 23 22.1 22.3 23.6 25.6 27.2 29.7 32.5 35.1 37.3 38.8 39.4 39.1 38.4 36.7 34.4 31.9
Door Newport Park ppb 27.7 27.6 27.3 26.7 26.3 25.5 25.5 25.2 24.6 24 23.5 23.7 24.3 24.7 25.2 26.2 27.4 28.4 29.2 29.3 28.8 28.7 28.5 27.8
Eau Claire Eau Claire DOT Sign Shop ppb 21.9 19.2 17.5 15.9 15.6 14.7 13.8 13.4 13.5 15 16.8 18.9 19.9 21.4 22.7 23.6 24.5 24.9 24.8 24.3 23.3 22.3 21.4 20.9
Fond du Lac Fond Du Lac ppb 28.8 27.3 25.8 24.1 23.3 21.5 20.5 20.1 19.7 20.1 21.2 23 24 26.5 28.6 30.7 32.7 33 32.5 31.5 30.7 29.3 28 26.3
Forest Potawatomi ppb 26.4 24.7 23.7 22.6 21.8 20.7 20 19.8 20.3 21.1 21.7 22.3 23 24.2 25.7 27.2 27.9 27.8 27.3 26.8 25.9 25.5 25.1 24.4
Jefferson Jefferson-Laatsch ppb 35.6 32.8 29.5 26.4 24.8 21.7 20 19.2 19.4 20.8 23.7 27.4 29.3 32.8 35.8 38.3 40.4 42 41.8 40.4 38.3 35.9 33.1 29.7
Kenosha Chiwaukee Prairie ppb 39 36.9 35.5 34.6 34 32.3 30.9 30.3 29.8 29.8 30.4 31.5 32.1 32.5 33.1 33.9 34.2 34.4 34.5 34 33.3 33.3 33.2 33
Kenosha Kenosha-Water Tower ppb 37.1 35.4 33.8 32.1 31.2 28.8 27.5 26.8 26.7 27.3 28.2 29.9 30.5 31.8 32.9 33.5 33.7 33.3 32.6 31.7 30.9 30.1 29.1 28.2
Kewaunee Kewaunee ppb 33.4 32.6 31.7 30.8 30.8 28.9 27.7 27.1 26.4 26.2 28 29.5 30.3 30.5 30.9 31.8 32.3 32.5 32.3 31.8 31.6
La Crosse La Crosse DOT ppb 25.6 21.6 18.5 17.5 15.9 16.1 16.5 17.8 20.6 23.6 26.3 27.7 28.3 29 30 31.1 32.2 33.3 34 34 34.2 34.3 34.4 34.4
Manitowoc Manitowoc ppb 29.4 28.3 26.3 24 23.1 20.8 19.3 19.1 19.4 19.5 20.6 22.2 22.6 24.1 25.5 26.5 27.1 27.4 28.1 28.4 28.5 28.6 28.6 28.4
Marathon Lake Dubay ppb 24.6 24.4 24.3 24.4 24.6 24.7 24.2 23.5 23.3 23 22.9 22.8 22.7 22.4 22.6 22.8 22.6 22.3 22.1 22 22 22.4 22.9 23.3
Milwaukee Bayside ppb 33.4 31.7 30.3 29.1 28.4 27.3 26.6 26.1 25.9 25.9 26 26.3 26.6 27.1 27.7 28.2 28.4 28.5 28.5 28.5 28.8 29 28.7 28.5
Milwaukee Milwaukee-16th St. Health Center ppb 29.5 28.2 27.3 26.7 26.3 25.9 25.6 25.8 26.2 26.4 26.6 26.8 26.9 27.2 27.4 27.5 27.1 26.6 26.1 25.8 25.4 25.4 25.4 25.2
Milwaukee Milwaukee-UWM UPark ppb 35.6 34.4 33.3 32.5 31.9 31.5 31.4 31.6 31.5 31.4 31.2 31 30.9 30.6 30.3 30 30 29.9 30.1 30.1 30.4 30.8 31.1 31.1
Outagamie Appleton ppb 25.9 24.3 22.4 20.2 19.2 17.6 16.8 16.5 16.6 16.9 18.4 20.6 21.6 24 25.4 26.3 26.4 26.6 26.7 26.3 25.8 24.6 23.9 23.6
Ozaukee Grafton ppb 32.8 30.9 29.3 27.8 27 25.3 24 23.4 23.5 23.9 24.6 25.7 26.4 27.8 29.1 29.8 29.9 29.8 29.4 29.1 28.3 27.3 26.6 26
Ozaukee Harrington Beach Park ppb 33 31.1 29.2 27 25.9 23.9 22.3 21.5 21.4 22 23.3 25.1 25.9 27.4 28.9 29.6 29.8 29.9 30 29.9 29.1 28.5 28.1 27.8
Racine Racine-Payne & Dolan ppb 34.4 32.9 31.5 30.1 29.2 28.2 27.7 27.6 27.9 28.5 29.7 30.3 30.4 31 31.4 31.7 31.6 31.5 31.1 31.2 31.1 30.8 30.6 30.6
Rock Beloit-Converse ppb 40.8 38 34.4 31.8 30.7 27.8 25.6 24.2 23.5 24.4 26.7 30.1 32.8 37.2 41.4 45.5 48.8 50.8 51.1 49.4 46.8 43.6 39.9 35.7
Sauk Devils Lake ppb 37.3 35.3 33.2 31 29.8 28.6 27.3 26 25.6 25.9 27.1 29.2 30.5 32.4 34.5 36.7 38.2 39.4 39.7 39.8 39.2 37.8 35.9 33.5
Sheboygan Sheboygan-Haven ppb 29.5 27.4 25.5 23.7 22.6 20.7 19.2 18.5 19.1 20.3 21.6 23.1 23.7 25.1 26.4 27.3 27.7 28 28.2 28.2 28.1 28.2 28.2 28
Sheboygan Sheboygan-Kohler Andrae ppb 32.4 31.1 30.1 29.1 28.7 27.9 27.1 26.5 26.2 26.2 26.4 26.6 26.9 27.4 28.1 28.5 28.9 29.1 29.3 29.2 29 29 28.8 28.6
Vilas Trout Lake ppb 22 20.4 19.1 17.7 17.1 15.1 13.8 13.8 14.3 15.1 16.6 18.9 20.1 22.8 25 26.2 26.6 26.8 26.1 25 24.3 23.5 22.7 22
Walworth Elkhorn ppb 31.2 28.3 25.7 24.7 24.1 23.3 22 21.4 21.7 23.3 25.6 28.7 30.4 33.2 36.1 38.9 40.5 40.8 39.9 37.8 35.1 31.4 27.7 24.1
Waukesha Waukesha-Cleveland Ave. ppb 35.4 33.5 31.1 28.9 27.7 26 24.6 24.1 24.3 25.4 27.1 29.3 30.7 33.4 35.6 37 37.6 37.2 36 34.4 32.5 30.3 28.4 26.9