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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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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 34.2 32.7 30.8 28.7 27.8 27 26 26.3 27.1 28.2 29.6 31.7 33.5 35.1 36.8 37.2 37.5 37.8 38.1 38.4 38.7 39.1 39.4 39.9
Brown Green Bay UW ppb 36.8 35.9 34.9 34.3 33.6 32.6 32.1 32.7 33.7 35.1 37 38.9 41.1 43.3 45 45.7 45.9 45.6 44.9 43.5 41.7 40 38.3 37
Columbia Columbus ppb 37.5 36.7 35.9 34.7 33.5 32.2 31.7 32.1 33 34.5 36.4 38.4 40.3 42.3 43.3 43.8 44.2 44.2 43.4 42.3 41.1 39.6 38.1 36.7
Dane Madison East ppb 37.9 37.2 36.1 35.2 34.9 35 35.5 36.2 36.9 38.2 39.5 40.7 41.6 42.1 42.4 42.6 42.7 42.5 42.2 41.6 40.7 39.6 38.7 37.6
Dodge Horicon Wildlife Area ppb 37.4 36.8 36.4 35.9 35.2 34.1 33.8 33.5 33.7 34.5 36.1 37.6 39.4 41.4 42.7 43.7 44.4 44.6 44 43.2 42.4 40.8 39.2 37.8
Door Newport Park ppb 34 32.6 30.9 29.9 29.7 30 30.2 31.2 32.5 34 35.8 37.5 39.1 40.4 42.3 43.3 44 44.3 44.3 44 42.6 41 38.7 36.9
Eau Claire Eau Claire DOT Sign Shop ppb 41 40.1 39.1 38 37.1 36.8 35.9 34.9 34.7 34.6 34.4 34.7 34.9 35 35.2 35.4 35.3 35.1 35.2 35 35.1 35.2 35.2 35.2
Fond du Lac Fond Du Lac ppb 34.5 33.5 33.3 32.9 32.7 32.3 32.4 32.4 33.1 34.2 35.1 36.5 37.7 39.6 40.8 41.6 42.1 42.3 41.9 41.3 40.7 39.5 37.8 36.2
Forest Potawatomi ppb 36.1 35.6 35.6 34.5 32.9 30.9 30.1 29.6 30.3 31.3 31.9 33.2 34.9 37.3 38.1 38.4 37.8 37.1 36.6 36.3 36 35.5 35.5 35.8
Jefferson Jefferson-Laatsch ppb 35.8 34.5 33.4 31.8 30.6 29.6 28.8 29 29.7 31.5 33.1 35.4 37.7 39.8 41.4 42.1 42.7 42.5 42.2 41.5 40.6 39.3 37.9 36.6
Kenosha Chiwaukee Prairie ppb 37.7 35.3 33.7 32.5 32.1 32 32.2 32.8 33.6 34.8 36 36.8 37.8 39.2 40.4 41.5 42 42.3 42.2 42.3 41.6 40.4 39 37.8
Kenosha Kenosha-Water Tower ppb 35.4 33.4 31.9 30.5 29.6 29.2 29.4 30 30.7 31.8 33.2 34.6 36.5 38.4 40.1 41 41.5 41.7 41.5 41.7 40.9 39.7 38.1 37
Kewaunee Kewaunee ppb 36.5 36.4 35.5 34.7 34.5 34.4 34.6 35.1 36.4 37.9 39.7 41.5 43.3 45.1 46.4 47.3 47.4 47 46.1 45.1 43.4 41.5 39.7 37.9
La Crosse La Crosse DOT ppb 42.2 42.1 42 41.7 41.3 41 40.8 40.7 40.5 40.2 40 39.9 39.9 39.9 40.1 40.1 40.1 40.2 40.1 39.8 39.7 39.6 39.3 39.1
Manitowoc Manitowoc ppb 33.3 32.4 31.2 30.4 29.7 28.9 29 29.9 31.6 33.2 35 37.2 39.3 41.8 43.2 43.7 43.9 44 43.7 42.8 41.5 39.7 38 36.3
Marathon Lake Dubay ppb 39 38.5 38.1 37.6 37.5 37.5 37.9 38.4 38.9 39.5 40.3 41.1 41.6 42.2 42.4 42.3 41.9 41.2 40.3 39.3 38.2 37.3 36.8 36.4
Milwaukee Bayside ppb 35.3 34 33 32.2 30.8 29 28 28.3 29.4 29.8 30.3 31.4 33.3 35.9 37.5 38.8 39.4 40.1 40.5 40.6 40.2 39.7 39.1 37.6
Milwaukee Milwaukee-16th St. Health Center ppb 33.3 32.3 31.8 31.3 30.1 29.1 29.1 29.6 30 30.6 31 31.4 32.7 34.5 35.8 36.9 37.6 37.9 37.9 38.3 38.4 38.1 37.2 35.8
Milwaukee Milwaukee-UWM UPark ppb 37.1 36.1 35.1 34.4 33.2 31.6 31.1 31.2 31.5 31.5 32.2 33 34.6 36.5 38.3 39.6 40.5 41.3 41.7 41.9 41.8 41.9 41 39.8
Outagamie Appleton ppb 34.6 32.6 32.4 32.2 31.1 30.2 30.8 31.7 33.2 35.7 36.9 38.3 40.6 42.8 43.8 44.4 44.6 44.5 43.6 42.2 40.4 38.7 37.1 36
Ozaukee Grafton ppb 37 35.6 35 34.4 33.5 33.3 33.4 34.1 35.4 36.5 37.1 38.3 40 41.4 42.5 43 43.3 43.4 43.6 43.1 42.6 42.1 41.1 39.6
Ozaukee Harrington Beach Park ppb 36.4 35.1 34.1 33.5 33 32.4 32.4 33.4 34.5 35.8 37.2 39 40.6 42.5 43.9 44.4 44.3 44 43.2 42.2 41.1 40.4 39.3 38
Racine Racine-Payne & Dolan ppb 37.4 35.8 34.7 34.1 33.5 32.9 32.5 32.8 33.6 34.3 35 35.3 36.5 38.2 39.9 41 41.6 41.6 41.6 41.7 41.1 39.9 38.8 37.6
Rock Beloit-Converse ppb 38.5 37.9 37.4 36.6 35.6 34.3 33 32.3 32.6 33.3 34.5 35.7 36.9 38.3 39.8 41.2 41.5 41.2 40.7 40.2 39.6 38.7 37.5 36.2
Sauk Devils Lake ppb 39.8 40.2 40.5 40.5 40.5 40.2 39.9 40 40.4 40.6 40.8 41.2 41.5 42 42.5 42.9 43 42.5 41.8 40.8 39.8 38.9 38 36.9
Sheboygan Sheboygan-Haven ppb 34.7 33.2 32.2 31.5 31.4 31.6 32 33.1 34.5 36.2 37.8 39.6 41.1 42.4 43.4 43.7 43.6 43.3 42.8 42 41.3 40.3 39 37.4
Sheboygan Sheboygan-Kohler Andrae ppb 35.8 34.5 33.9 33 32.1 31.4 31.5 31.6 32 33.2 34.3 36.2 38.7 41.3 43.4 44.9 46 46.4 45.7 44 42.2 40.7 38.9 36.8
Vilas Trout Lake ppb 41.7 40.5 39.4 38.2 37.3 36.4 35.7 35.4 35.6 36.5 37.3 37.7 37.7 37.6 37.8 37.9 38 37.7 37.4 37.3 37.5 37.7 37.8 37.9
Walworth Elkhorn ppb 36.3 35.3 34.4 33.8 33.5 33.1 32.3 31.3 30.8 30.9 32.2 33.6 35.2 37 38.4 40 41.2 41.9 41.5 40.9 39.7 38.8 37.9 36.9
Waukesha Waukesha-Cleveland Ave. ppb 36.9 36 34.8 33.4 32.4 31.6 31.6 31.6 31.4 31.4 32.8 34.9 36.8 39 40.8 41.9 42.8 43.7 43.5 43 42.5 41.6 40.3 38.9