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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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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 23.1 20.3 16.9 13.6 11.5 10 10.6 11 12.9 15.1 18 21 24.1 27.3 29.3 29.9 30.3 30.5 30.5 30.3 29.7 28.7 28 26.4
Brown Green Bay UW ppb 36.5 35.1 33.3 31.6 30.3 29.7 29.3 29.1 28.8 28.7 28.8 29 29.9 31.2 32.4 33 33.5 33.9 34.1 33.4 32.4 30.3 28.5 26.9
Columbia Columbus ppb 39.9 38.4 37.3 36.5 36.1 34.9 33.9 33.2 32.7 32.8 32.9 33.3 34.2 35.5 36.8 38 39 39.7 39.9 39.8 38.7 37.2 35.5 34
Dane Madison East ppb 41.2 39.6 38.4 37.6 36.9 36.2 35.3 34.3 33.5 33.5 33.8 34.3 35.2 36.4 37.4 38.4 39.6 40.5 40.9 40.6 40.1 39.6 38.9 37.9
Dodge Horicon Wildlife Area ppb 39.5 38.7 38.1 36.6 34.7 32.4 30.8 29.7 28.9 28.4 28.6 29.9 31.1 32.6 33.9 35 35.9 36.6 37.4 37.8 38.3 38.2 37.9 37.6
Door Newport Park ppb 41.3 39.1 37 35.4 34.1 33 32.3 31.8 31.5 31.7 32 32.6 33.1 33.8 34.5 35.2 35.8 36 35.8 34.9 33 30.7 28.3 26
Eau Claire Eau Claire DOT Sign Shop ppb 33.7 32.5 31.4 30.9 30.1 29.7 30 30.5 31.3 32.1 33 34.1 35.6 37.3 38.7 39.8 40.3 40.5 40.7 40.2 39.9 39.8 39.5 39.3
Fond du Lac Fond Du Lac ppb 38.5 37.8 37.1 35.7 34.2 32.7 30.9 29.9 29.5 29.3 29.7 30.3 31.3 32.7 34.5 35.8 36.8 37.4 37.9 38.3 38 37.3 36.6 35.9
Forest Potawatomi ppb 40.4 38.4 36.5 34.7 33.3 31.9 30.6 30.1 29.8 30 30.7 31.7 33 34.4 35.5 36.1 36.6 36.5 35.5 34.5 33.8 33.3 33.4 33.4
Jefferson Jefferson-Laatsch ppb 41.9 40.5 38.9 38.3 37.6 36 34.6 33.4 32.7 32.5 33.3 34.1 35 36.3 37.4 38.4 39.3 40.1 40.7 40.7 40.3 39.4 38.3 37.1
Kenosha Chiwaukee Prairie ppb 47.7 45.9 45.5 45.2 44.3 43.1 41.8 40.7 39.5 38.5 37.9 37.4 36.9 36.3 35.8 35.6 35.6 35.8 36.3 37.2 38.2 38.9 39.3 38.2
Kenosha Kenosha-Water Tower ppb 46.5 44.9 44.3 41.9 40 38.1 36.6 35.4 34.4 33.8 33.7 35 35.3 35.9 36.6 37.4 38.1 38.5 39.2 39.9 40.4 40.2 39.2 37.3
Kewaunee Kewaunee ppb 43.2 41.7 39.6 37.8 36.3 34.9 33.5 32.7 32.6 32.6 32.7 32.6 32.6 32.6 32.5 33.2 34 34.9 35.9 36.2 35.3 34.3 33.2 31.3
La Crosse La Crosse DOT ppb 38.9 36.2 33.6 32.5 32.5 32.6 33.3 33.8 34.6 35.7 36.8 37.2 37.4 37.9 38.6 39.4 40.3 41.3 42.1 42.7 43.1 43.3 43.1 42.6
Manitowoc Manitowoc ppb 38 34.1 31.1 28.5 25.7 23.8 22.7 23.2 24.4 26.5 27.7 28.7 30.4 31.8 33 34 35.5 36.9 37.7 37.2 35.8 33.5 30.3 26.8
Marathon Lake Dubay ppb 35.4 35.5 35.5 35.1 33.8 32.6 31.9 31.3 30.9 30.5 30.2 30.4 31.2 32.1 33.5 34.9 36 36.8 37.1 37.6 38 38.2 37.9 37.2
Milwaukee Bayside ppb 41.7 41.6 41.4 40.5 38.3 36.8 35.4 34.2 33.5 32.6 31.8 31.4 32.3 32.5 32.8 33.3 33.6 34.2 35.1 35.9 36.8 36.9 36 34
Milwaukee Milwaukee-16th St. Health Center ppb 38.6 38.2 37.8 37.1 36.3 35.2 34.1 32.9 32.1 31.8 31.2 30.6 30.8 31.3 32.4 33.7 34.7 35.5 36.1 36.9 37.3 37.4 36.7 35.4
Milwaukee Milwaukee-UWM UPark ppb 42.1 41.8 41.8 41.2 39.8 38.3 36.8 35.5 34.5 33.9 33 32.5 32.6 32.7 32.9 33.4 33.8 34.3 35.1 35.9 36.6 36.9 36.8 35.6
Outagamie Appleton ppb 35.1 34.1 33.2 31.9 30.6 29.3 28.5 28.4 29.1 29.8 30.5 31.7 33.2 35.1 37 38.7 40.1 41 40.8 40.1 39.1 37.9 36.4 34.9
Ozaukee Grafton ppb 41.4 41.1 40 38.7 37 35.4 34.2 33 32.1 31.6 31.3 31.4 31.9 32.3 32.9 33.5 34.1 35 36 36.9 37.6 37.5 36.1 33.9
Ozaukee Harrington Beach Park ppb 39.4 38.9 37.4 35.9 34.3 32.8 31.9 31.1 30.4 29.9 30.2 30.5 31 31.5 31.6 31.7 32.4 33.7 34.6 35.2 35.2 35 34.5 34.2
Racine Racine-Payne & Dolan ppb 43.2 42.4 42.3 41.8 41 39.9 38.8 37.7 36.6 35.9 35.1 34.3 33.7 33.1 32.8 32.9 33.2 33.6 34.2 35.2 35.9 36.7 37.2 37.3
Rock Beloit-Converse ppb 44.5 42.4 40.1 38.8 37.4 36.8 35.7 34.8 34.1 34.4 35.3 36.3 38.2 40.1 41.9 43.6 45.2 46.2 46.6 46.5 45.7 44.6 42.8 40.4
Sauk Devils Lake ppb 36.1 35.9 35.6 36 37.3 38.2 37.6 36.4 35.3 34.7 34.6 35 36.3 37.7 39 40.3 41.6 42.4 42.6 40.7 38.2 37.1 36.1 35.1
Sheboygan Sheboygan-Haven ppb 40.1 39 37.7 36 34.1 32.8 31.9 31.1 30.6 30.5 30.8 31.3 32 32.5 32.7 33.4 34.3 35.2 35.9 36.4 36.9 36.3 34.8 32.4
Sheboygan Sheboygan-Kohler Andrae ppb 40.4 40.2 39.4 37.9 36.4 35 33.7 32.7 31.8 31 30.6 31 31.3 31.4 31.6 31.9 33.1 34.3 35.2 36.3 36.4 36.1 35.3 33.9
Vilas Trout Lake ppb 33.5 31 29 27 25 23.5 23.6 24.4 24.9 26 27.4 29.2 31.2 33 34 34.7 35.2 35.1 34.3 32.9 31.5 30.2 29.3 29.1
Walworth Elkhorn ppb 41.6 39.4 37.7 37.4 36.4 35.3 34.5 33.7 33.6 34 34.8 35.9 37.3 38.6 39.8 41.3 42.7 43.6 43.9 43.5 42.2 40.5 38.8 37.2
Waukesha Waukesha-Cleveland Ave. ppb 40.9 39.8 39.3 38.1 36.2 34.7 33.4 32.5 32.1 32.1 32.3 32.6 33.8 35.1 36.5 37.8 38.9 39.8 40.4 40.8 40.9 40 38.5 36.2