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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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Sunday, 
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 20.8 16.8 12.7 9 6.1 4.3 4 4.7 6.4 8.6 11.2 13.9 16.5 18.9 21.3 23.5 25.1 26.1 27 27.6 27.8 27.1 25.5 23.6
Brown Green Bay UW ppb 35.4 35 34.8 33.9 31.8 29.3 26 23.2 21.3 20 18.7 19 19.9 21.3 22.9 24.4 25.8 27 27.8 28.1 27.2 25.1 22.4 20.3
Columbia Columbus ppb 32.4 29.9 27.7 26.7 27.2 27.7 28.5 29.2 30.2 31.8 33.3 34.4 35.1 36 37.2 38.5 40 41.3 41.6 41.1 40.3 38.6 35.8 33.2
Dane Madison East ppb 19.3 14.6 10.5 8 8.4 9.5 11.6 14.5 17.3 20.2 23.3 26.2 27.4 28.8 30.9 33.5 36.3 39 41.2 42.4 42.4 41.5 39.4 36.4
Dodge Horicon Wildlife Area ppb 32.6 30.9 29.5 29 29.2 29.8 30.4 31.4 32.4 33.7 35.2 36.5 37.4 37.9 37.9 37.9 37.8 37.6 36.4 34.4 32.5 30.9 29.5 28.3
Door Newport Park ppb 36 33.2 30.1 27.2 23.8 19.9 17.9 17.2 17.6 18.2 18.9 19.6 20.4 21.3 21.9 22.2 22.4 22.4 22.1 21 19.6 17.9 16.7 16.1
Eau Claire Eau Claire DOT Sign Shop ppb 34.7 32.8 31.1 29.6 29.2 29.3 29.4 29.5 29.5 30 30.5 31.1 31.8 32.6 34.2 36 37.8 39.2 40.2 40.9 40.7 40 38.7 37.1
Fond du Lac Fond Du Lac ppb 36.8 35.8 35.2 35 35.3 35.8 36.5 37.3 38.2 39.1 39.6 40 39.5 38.3 37.1 36.2 35 33.7 32 30.1 28.5 27.4 26.3 25.2
Forest Potawatomi ppb 31.1 28.2 25.3 22.9 20.7 19 17.5 16.9 17.7 19.2 21.1 22.8 24.4 26.3 28.2 29.6 29.9 30.1 30.1 30 30.2 30.1 30 29.7
Jefferson Jefferson-Laatsch ppb 22 17.6 13 10.2 9.9 10.6 13.3 17.1 21.1 25.1 29.1 33.2 36.4 39 40.6 41.8 42.9 43.4 43.4 42.4 40.3 38.3 36 33.3
Kenosha Chiwaukee Prairie ppb 26.1 20.6 15.8 12.2 14.9 18.7 23.6 28.2 32.4 35.4 38 40.4 37.4 34.1 30.8 28.3 26.2 25.2 25 24.9 24.9 25 24.7 23.9
Kenosha Kenosha-Water Tower ppb 33.5 28.8 23.9 20.9 21.9 23.9 26.6 29.4 33 35.7 39.3 42.1 41.4 40 38 36.1 34.3 33.7 32.5 30.7 28.8 27.2 25.3 23.7
Kewaunee Kewaunee ppb 35.5 36.2 36.9 37.1 35.7 33.6 31 28 25.2 22.7 21.2 21.1 21.7 22.2 22.6 23 23.4 23.8 23.9 24.1 24.2 24.5 24.9 25.1
La Crosse La Crosse DOT ppb 23.1 19.7 15.8 13.6 12.6 13.3 15.3 17 19.5 22.8 25.9 26.3 26.8 27.6 28.6 30.1 31.2 31.7 32.1 32.2 32.2 31.8 31.4 31.2
Manitowoc Manitowoc ppb 28.6 28.2 28.2 30.3 32.8 35 33.7 31.1 28.4 25.8 23.3 21.5 21.2 21.9 22.7 23 23.5 24 24.4 24.2 23.4 21.7 19.6 17.4
Marathon Lake Dubay ppb 31 29.7 29.6 30.2 30.7 31.3 30.7 29.6 29 28.4 27.4 26.2 25.9 26.4 27.5 28.9 30.6 32.3 33.6 34.5 34.9 34.6 33.8 32.9
Milwaukee Bayside ppb 36.2 33 33 33.2 33.9 34.5 35.4 36.2 37 37 34.1 31.2 28.3 25.9 24.1 23.2 23.2 23.3 23.3 23.1 22.9 22.9 22.4 21.9
Milwaukee Milwaukee-16th St. Health Center ppb 31.3 27 26.4 27.3 29.2 31.4 32.3 33 34.2 35.8 33.9 31.7 29.2 26.3 24.5 23.7 22.9 22.8 22.7 21.9 21.4 21 20.4 19.7
Milwaukee Milwaukee-UWM UPark ppb 35 30.5 30.1 30.2 31.8 33.6 34.6 35.6 36.8 37.9 35.1 32.2 29.1 26.1 24.4 23.2 23.1 23.2 23.3 23.3 23.1 23.1 22.8 22.4
Outagamie Appleton ppb 35.3 34.6 34 34.3 33.2 31.5 29.6 27.7 26.3 25.2 24.4 23.8 24.5 25.7 26.8 28 29.1 30.1 30.7 30.5 30 29 28 26.6
Ozaukee Grafton ppb 35.7 34.2 34.3 34.4 34.8 35.4 36.1 36 35.8 34.6 32.2 29.9 27.3 25.2 23.6 23.5 23.6 23.8 23.8 23.7 23.6 23.5 23 21.8
Ozaukee Harrington Beach Park ppb 37.4 37.4 37.9 37.4 37.4 37.4 36.7 35.6 34.1 30.9 27.7 26.9 24.5 22.7 22 22.1 22.4 22.5 22.4 22.5 22.5 22 21.2 20.1
Racine Racine-Payne & Dolan ppb 32.1 27.2 23.6 24 25.9 28.5 30.7 32.8 34.5 36.3 36.9 34.2 31 27.8 25.2 23.5 22.9 22.9 22.9 22.9 22.8 22.7 22.7 22.7
Rock Beloit-Converse ppb 16.8 12.5 8.5 5.6 3.6 2.9 5.3 10.3 15.2 21.1 27.5 29.1 30.6 35.6 39.5 41.8 44.1 45.7 46.5 46.4 45.9 44.3 41.2 37.7
Sauk Devils Lake ppb 18.2 14.8 13.2 12.7 13.7 15.7 18.8 22.2 25.5 28.2 29.4 29.8 30 30.7 31.4 32.4 34.1 36 37.9 39.2 39.7 39.5 39 37.7
Sheboygan Sheboygan-Haven ppb 37.7 38.3 38.6 38.7 39.1 39 38.2 37.2 34.9 32.2 29.8 27.2 24.9 23.5 23.2 23 23.2 23.3 23.3 23.5 23.6 23.2 22.9 22.4
Sheboygan Sheboygan-Kohler Andrae ppb 39.1 38 36.3 34.8 33.5 34 33.2 33.4 31.6 28.9 26.4 24.1 22.5 21.6 21.7 22 22.3 22.4 22.5 22.6 22.3 21.8 21.3 20.7
Vilas Trout Lake ppb 26 23.2 20.1 17.8 15.7 13.7 12.4 12.4 13.8 15.9 18.1 20.5 23.4 26.6 29.1 31 32.1 32.2 32.4 32.2 30.8 29.6 28.6 27.7
Walworth Elkhorn ppb 31.5 28.8 25.9 23.4 23.9 25.9 26.9 28.5 30 31.8 34.2 37.9 40.1 41 41.9 42.3 42.3 42.6 42.5 40.7 38.4 35.6 32.6 29.6
Waukesha Waukesha-Cleveland Ave. ppb 28.5 24.2 21.4 21.7 22.9 25.3 27.6 30.6 33.8 36.8 39.3 39.7 39.8 39 38.2 37.6 36.7 35.6 34.6 33.2 31.3 29.4 27.6 25.7