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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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Thursday, 
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 12 10.5 10 10.3 10.9 11.6 12.3 12.5 12.9 13.8 15 16.1 17.4 19 20.1 21.4 22.4 22.3 21.6 20.9 19.4 17.2 15.5 15.1
Brown Green Bay UW ppb 5.7 7.5 9.4 11.8 14.7 18 21.5 24.5 26.5 27.2 27.3 26.7 26.2 25.9 25.7 25.4 24.8
Columbia Columbus ppb 16 15.6 15.5 15.2 14.3 13.7 13.2 13 13.4 14.4 15.9 17.9 20.7 23.8 27.5 31.1 34 36.1 37.1 37.4 37.7 37.7 37 35.6
Dane Madison East ppb 6.3 3.6 1.4 0 -0.7 -0.8 0.2 1.8 4.1 7.2 10.7 14.5 18.6 22.9 26.2 28.8 30.7 32.1 33.2 33.8 34.1 34.2 34.2 33.7
Dodge Horicon Wildlife Area ppb 10.9 9.4 7.9 6.7 5.6 5.1 4.7 5.2 6.9 9.2 12.3 15.7 19.3 22.9 26.4 29.7 32 33.2 34 34.7 34.4 34 33 31.7
Door Newport Park ppb 18.9 16.8 15.4 14.8 14.5 13 11.7 11.4 11.9 12.6 13.8 15.2 17.3 20 22.8 25.1 26.9 28.4 28.7 28.4 28.2 27.7 27.5 27.6
Eau Claire Eau Claire DOT Sign Shop ppb 7.4 4 2 1.9 2.2 2.3 2.9 4.5 6.3 8 10.1 12.6 15.5 18.9 22 24 26.1 27.9 29.2 29.6 29.6 29.3 28.8 28.3
Fond du Lac Fond Du Lac ppb 9.5 8.1 7.1 6.3 5.2 4.4 4 4.1 5.8 8.3 11 14.1 17.9 21.9 25.7 29 30.7 31.9 32.7 32.7 32.3 31.2 30.2 29.2
Forest Potawatomi ppb 15.7 14.9 14.9 14.5 14.1 13.7 14.1 14.9 16.4 17.5 18 18.8 19.7 20.1 20.4 20.3 19.5 18.6 18.1 17.8 17.3 17.2 17.2 17.5
Jefferson Jefferson-Laatsch ppb 11 9 7.2 5.8 4.4 2.8 1.8 2.3 4.3 7.3 10.6 14.5 16.6 19.3 24.5 28.7 31.5 33.1 34.2 34.7 34.4 34.2 34.2 33.7
Kenosha Chiwaukee Prairie ppb 17.4 15.1 13.6 12.5 11.3 9.3 8.9 10.4 12.1 14.5 16.6 18.6 21.1 24.9 28.7 31.1 32.9 34.4 35.9 37 37.9 38 36.6 35.5
Kenosha Kenosha-Water Tower ppb 19.6 18.1 16.8 15.5 13.6 12.5 11.4 11.8 13.3 14.7 16.4 18.3 21.6 24.7 28 30.3 32 33.5 34.8 36 36.4 36 34.4 32.5
Kewaunee Kewaunee ppb 16.3 14.6 13.2 12.4 11.2 10 9.4 9.6 10.8 12.5 14.4 16.6 19.3 22.7 25.5 27.7 29.2 30.8 31.9 33.4 34.8 35.4 36.2 36.2
La Crosse La Crosse DOT ppb 15.8 12.6 10.1 8.2 7.4 6.8 6.5 7.1 7.9 9.4 11.6 14.6 16.8 19.5 22.6 25.8 28.9 31.3 32.8 33.9 34.8 35.3 35 34.1
Manitowoc Manitowoc ppb 10.6 8.1 6.1 4.3 3.2 2.3 1.9 2 3.7 6.2 9.2 12.7 16.3 20 23.7 27.2 29.7 31.7 32.8 32.7 32 30.6 30.5 30.4
Marathon Lake Dubay ppb 13.4 12.3 12.2 12.1 11.8 11.4 10.9 10.4 10.6 12.1 13.9 16.1 19.2 22.1 25.4 28.1 30.1 31.7 32.3 32.2 31.7 31.1 30.2 29.5
Milwaukee Bayside ppb 13 10.1 7.4 5.2 3.7 2.4 1.6 2.3 4.5 7.3 10.7 14.5 18.5 22.8 27.1 30.1 32.1 33.7 34.9 35.2 35.4 35 34.6 34.6
Milwaukee Milwaukee-16th St. Health Center ppb 17.1 15.6 13.7 11.4 9.1 7.3 5.8 5.7 6.1 7.9 10.1 13.4 17.1 21 24.9 27.9 29.3 30.4 31.3 32 32.4 32.2 31.2 30.2
Outagamie Appleton ppb 6.4 4.7 3.9 3.7 3.7 3.3 3 3.3 5 7.4 10.1 13.3 16.9 21.3 25.3 29.1 31.3 32.7 33.1 32.2 30.6 29.3 28.1 25.8
Ozaukee Grafton ppb 13.5 10.9 8.4 5.8 3.7 2.9 2.7 3.8 6.3 9 11.8 15.5 19.9 24.5 29.1 32.4 34.1 35.7 37 37.2 36.4 35 33.3 32.3
Ozaukee Harrington Beach Park ppb 16.4 14.9 13.6 11.8 10.4 9 7.9 7.9 8.7 8.4 10.8 14 18.2 23.1 27.6 31.4 34.4 34.7 35.8 36.7 36.7 35.9 35.2 34.5
Racine Racine-Payne & Dolan ppb 18.5 17.3 16.1 14.9 13.3 11.2 9.7 9.8 10.7 12 14 16.4 19.7 23.9 27.9 30.8 33 34.2 35.3 36.4 37.3 37.4 37.3 37.2
Rock Beloit-Converse ppb 12.4 10.1 7.8 5.8 3.3 1.7 1.2 2.3 4.7 7.4 10.7 14.8 19.6 24.9 30.4 34.9 37.6 39.4 40.1 39.8 38.9 37.7 35.8 33.6
Sauk Devils Lake ppb 9.3 7.9 7.1 7 7 6.9 7.4 8.3 9.6 11.2 13.6 16.3 19.4 22.7 25.5 27.7 29.6 31.3 32.5 33.1 33.2 33.2 32.9 32.4
Sheboygan Sheboygan-Haven ppb 12.4 10.2 8.4 6.9 5.1 3.8 3 3.1 4.7 7.2 9.9 12.7 16.1 19.9 24.2 28.3 30.8 32.5 33.4 34.1 33.9 33.4 32 30.2
Sheboygan Sheboygan-Kohler Andrae ppb 16.9 14.5 12.8 10 7.2 5.5 4.4 3.8 29.8 32 36.1 39.1 40.6 40 39.4 38.7 38
Vilas Trout Lake ppb 10.3 8.5 7 6.4 6.5 6.1 6.1 6.9 8.1 8.8 10.4 12.5 14 16 17.9 19.2 20 20.6 20.6 20.1 19.4 18.6 17.7 16.7
Walworth Elkhorn ppb 13.6 12.7 12.1 11.3 10.6 9.8 9.3 9.6 10.7 12.4 14.4 17.2 20.1 23.5 26.8 29.4 31.4 32.9 33.8 33.9 33.3 32.1 31.5 31
Waukesha Waukesha-Cleveland Ave. ppb 13.2 11.4 9.5 7.7 6 4.2 2.8 2.8 4 6.6 9.7 13.4 17.4 21.6 25.8 29.3 32 33.5 34.2 34.4 34.1 33.5 32.4 31.1