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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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Wednesday, 
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 24.8 20.7 16.5 12.7 10 8.4 8.4 9.7 12.1 15.4 19.3 23.3 27.1 30.9 33.9 36.1 37.4 38.1 38.3 38.3 37.5 35.8 32.9 29.5
Brown Green Bay UW ppb 32.4 32 31.7 31.4 31.1 30.7 30.2 29.9 29.8 29.7 30 30.6 31.5 32.8 34 35.2 36.4 38.1 38.6 38 36.7 35.1 33.8 32.2
Columbia Columbus ppb 27.9 27.1 26.4 25.9 26 26 26 26.6 27.2 27.8 28.7 30.5 31.9 33.4 35.2 36.9 38.7 40.4 41.5 41.3 40.5 39.3 37.8 35.9
Dane Madison East ppb 12.3 9.5 7.7 6.5 6.6 7.6 10.1 13.1 16.1 18.4 20.7 23.7 26.7 30.1 32.6 34.7 36.9 38.8 40.2 40.4 40 38.5 36.8 34.9
Dodge Horicon Wildlife Area ppb 26.6 26.1 25.5 25.2 24.7 24.5 24.7 24.8 24.7 25 25.9 27.2 28.9 31.1 33.4 35.4 37.7 39.5 40.4 40.5 40.1 39.4 37.6 35.7
Door Newport Park ppb 31.6 31 30.6 30.2 29.7 29.4 29.1 29.2 29.5 29.9 30.4 30.9 31.5 32.4 33.4 34.3 35.3 36.6 38 39 39.9 40.6 41.4 41.7
Eau Claire Eau Claire DOT Sign Shop ppb 33 31.4 29.4 27.6 24.8 22.6 21.2 20 20.1 20.8 22.2 24.6 28.9 33.3 36.9 39.7 42.1 44.4 45.9 45.6 42.2 36.5 31 25.1
Fond du Lac Fond Du Lac ppb 27.4 27.2 26.8 26.6 26.9 26.6 25.5 25.7 25.9 25.8 26.2 27.2 28.3 30.2 33.1 34.6 36.2 37.9 39.1 39.4 38.9 38.1 37 36
Forest Potawatomi ppb 37.8 37.2 36.6 35.9 35.1 34.5 33.8 33.4 33.3 33.6 34.2 35.3 36.5 37.8 39.4 41 42.2 43.1 43.9 45 45.2 45.2 45 45
Jefferson Jefferson-Laatsch ppb 24 23.7 22.9 22.2 22.1 22.7 23.7 23.6 23.8 24.4 25.5 27 29 31.4 33.7 35.9 37.9 39.3 39.8 39.6 38.6 37.1 35.1 33
Kenosha Chiwaukee Prairie ppb 31.8 31.4 31.2 31 30.7 30.5 30.1 29.9 30 30.4 30.8 31.1 31.7 32.3 32.8 33 32.9 32.6 32.5 32.5 32.4 32.2 32 32.2
Kenosha Kenosha-Water Tower ppb 29.6 29.2 29.2 28.9 28.5 27.8 27.1 26.6 26.5 26.8 27.2 27.8 28.6 29.9 30.8 31 31.2 30.8 30 29.4 29 28 26.9 26.1
Kewaunee Kewaunee ppb 32.7 32.5 32.3 31.8 31.3 30.8 30.4 30.3 30.5 30.9 31.3 31.8 32.6 33.3 34.3 35 35.6 36.1 36.7 37.1 37.5 37.6 36.3 35.7
La Crosse La Crosse DOT ppb 19.7 15.9 12.7 10.6 9.3 7.3 5.9 7.3 11.4 16 20.3 22.3 24.3 29.5 34.3 37.3 39.2 40.8 42.1 42.8 42 40 37.6 34.7
Manitowoc Manitowoc ppb 30.6 30.2 29.6 28.8 28.1 27.5 27.1 27.1 27.5 28.1 28.9 30.1 31.9 33.8 35.7 37.3 38.7 39.7 40.1 39.6 37.5 34.9 31.6 28.4
Marathon Lake Dubay ppb 34.4 33.4 32.4 31.7 31 30.4 30.2 30.6 30.8 31.3 32.2 33.4 34.9 36.7 38.4 40.1 41.8 43.5 44.7 45.2 45.1 45 44.8 44.2
Milwaukee Bayside ppb 31.1 31.2 31.2 30.5 29.6 28.7 28 27.8 27.6 27.7 28 28.7 29.6 30.5 31.3 31.8 32.2 32.4 32.3 31.9 30.6 28.2 25.2 21.5
Milwaukee Milwaukee-16th St. Health Center ppb 27.3 27.5 27.5 27.5 27.4 25.3 24.1 23.3 23.2 23 22.7 23 23.1 24.6 25.5 25.6 25.9 25.8 25.8 25.8 25.4 23.7 20.6 17.8
Milwaukee Milwaukee-UWM UPark ppb 30.5 30.8 30.7 30.3 29.5 28.8 27.9 27.8 27.7 27.6 27.9 28.4 29.4 29.9 30.8 31.2 31.6 31.8 31.8 31.4 30.7 29.6 27.4 24
Outagamie Appleton ppb 30.4 30.4 30.1 29.3 28.4 27.7 27.4 26.9 26.7 26.9 27.7 29.3 31.3 33.6 35.4 37.1 38.6 39.6 40.1 39.8 38.7 37.4 35.7 33.9
Ozaukee Grafton ppb 29.1 29 28.6 27.8 26.2 24.8 24.5 24.5 24.2 23.9 24.3 25.1 26.8 28.4 29.4 30.1 31.1 31.8 32.3 32.5 31.1 28.6 26.2 23.3
Ozaukee Harrington Beach Park ppb 30.9 30.9 30.4 29.5 28.3 27.3 26.8 26.4 26.2 26.3 27 27.7 28.8 30 30.8 31.5 31.9 32.1 32.4 32.7 32.9 32.4 31.1 29.7
Racine Racine-Payne & Dolan ppb 30 29.9 30 29.8 29.5 29.3 29 28.8 28.9 29.1 29.4 29.8 30.3 30.6 30.6 30.6 30.5 30.5 30.4 30.1 29.2 27.5 24.8 22.1
Rock Beloit-Converse ppb 27 26.7 26.5 26.1 25.6 24.7 24.2 24.2 24.3 24.6 25.5 26.5 27.7 30 32.4 34.6 36.6 38.3 39.4 39.6 38.8 37.1 34.9 32.5
Sauk Devils Lake ppb 16.5 15.2 15.3 16.2 17.9 20 22.4 24.8 27.2 28.8 29.6 30.6 32.3 34.4 36.7 39 41.1 43.1 44.2 43.5 41.3 39.1 37.2 35.1
Sheboygan Sheboygan-Haven ppb 30.9 31 30.5 29.6 28.5 27.8 27.5 27.1 27.4 27.6 28.1 29.2 30.3 31.4 32.4 33.4 34.2 35 35.7 35.7 35.6 34.9 33.8 32.5
Sheboygan Sheboygan-Kohler Andrae ppb 29.4 29.4 29.1 28.7 27.5 26.4 25.7 25.3 25.2 25.5 26.1 26.8 28.2 29.7 30.8 31.3 31.7 32.3 32.9 33.2 33.4 32.9 31.3 29.7
Vilas Trout Lake ppb 33.7 31.8 29.9 27.5 25.2 22.7 20.2 19.2 19.5 21.3 23.3 26.4 29.9 33.7 37.7 40.5 42.1 43.1 43.5 43.4 42.7 41.3 39 37.5
Walworth Elkhorn ppb 29.7 29 28.2 27.4 26.7 25.9 25.3 24.8 24.5 24.8 25.5 26.8 28.5 30.4 32.2 33.9 35.4 36.3 36.3 35.5 34.2 32.4 30.3 28
Waukesha Waukesha-Cleveland Ave. ppb 27.6 27.1 26.5 26.3 25.5 24.3 23.6 23.3 23.2 23.4 24 24.9 26.3 28.3 29.8 31.2 32.5 33.8 34.7 34.6 33.8 32 29.6 26