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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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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 40.5 40.9 41.3 41.3 41.3 41.4 41.8 42.3 42.8 43.5 44.4 45.5 46.4 47.2 47.7 48 48 47.8 47.5 47.1 47 46.8 46.7 46.3
Brown Green Bay UW ppb 36 35.1 34.5 34.6 35.1 35.8 36.3 36.6 36.8 37 37.2 37.5 37.8 37.9 38.1 38.2 38.7 39.3 39.5 39.6 38.5 37 35.4 34
Columbia Columbus ppb 35.4 34.2 33.2 32.7 32.1 32.3 32.9 33.1 33.8 34.6 35.7 36.7 37.9 38.8 39.6 41.1 42 42.9 43.6 44.1 44.2 44 43.3 42.5
Dane Madison East ppb 36.7 35.9 35.1 34.5 34.2 34.1 33.9 33.8 34 34.6 35.4 36.3 37.2 38.1 39.2 40.4 41.3 42.2 43 43.9 44.5 44.7 44.9 44.7
Dodge Horicon Wildlife Area ppb 36.4 34.9 33.2 32.2 31.8 31.9 32.4 32.6 33.3 34.4 36 37.2 37.7 38.1 38.6 39.5 40.2 40.8 41.4 41.8 42.1 42.5 42.1 41
Door Newport Park ppb 35.1 33.6 32.4 31.5 31.9 32.6 33.7 34.3 34.7 35.1 35.5 35.8 36.1 36.4 36.7 37 37.1 37.2 37.2 37 36.5 36.1 35.2 34.1
Eau Claire Eau Claire DOT Sign Shop ppb 35.2 35.1 35.1 35.3 35 34.5 34.6 35.2 36.2 37.3 38.6 39.9 41.6 43.4 44.7 45.3 45.5 45.7 45.8 45.2 44.3 42.4 39.2 35.3
Fond du Lac Fond Du Lac ppb 34.8 33.6 32.6 32 31.4 31.4 32 32.5 32.9 33.3 33.9 34.3 34.8 35.1 35.3 35.8 36.7 37.5 38.2 38.6 38.2 37.8 37.4 36.9
Forest Potawatomi ppb 36.1 36.5 36.7 36.7 36.5 36.3 36 36 36.2 36.3 36.7 37.2 37.8 38.9 40.4 41.9 43.4 45 46.5 47.8 49.1 49.9 50 49.7
Jefferson Jefferson-Laatsch ppb 35.5 34.4 33.2 32.4 31.7 31.1 30.9 31.2 31.4 31.7 32.5 33.4 34.6 35.9 37.1 37.9 38.8 39.9 40.3 39.9 38.8 37.8 36.6 35
Kenosha Chiwaukee Prairie ppb 36.8 35.5 34.1 32.6 32.1 31.5 31.2 30.8 30.8 31.1 32.3 33.7 34.1 34.8 35.4 35.8 36.3 36.7 36.4 35.6 34.7 33.9 33.1 32.3
Kenosha Kenosha-Water Tower ppb 35.8 34.3 32.8 31.5 30.7 30.1 30 29.8 30.1 30.7 31.9 32.5 33.3 34 34.6 34.8 35.1 35.4 35 34.6 33.8 33 32.3 31
Kewaunee Kewaunee ppb 36.6 35.7 35.2 34.7 34.7 35.2 35.7 36.4 37 37.5 37.9 38.2 38.7 39 39.2 39.2 39.1 38.9 38.9 38.6 38.3 37.7 36.9 35.8
La Crosse La Crosse DOT ppb 38.9 38.6 38.3 38.2 38.1 38 38.3 39 39.8 40.8 41.8 42.9 44.1 45.3 46.1 46.6 46.8 46.9 46.9 46.7 46.2 44.4 41.9 39.4
Manitowoc Manitowoc ppb 34.8 33.5 32.2 31.4 31.1 31.5 32.2 33.1 33.7 34.2 34.6 35.3 35.9 36 36 35.9 35.9 35.9 35.9 35 33.5 32.2 31.1 29
Marathon Lake Dubay ppb 36.5 36.5 36.5 36.6 36.9 37 37 37.2 37.5 38.2 39.2 40.5 41.9 43.2 44.7 46.2 47.3 48.2 48.7 48.7 48.6 48.1 47.2 46
Milwaukee Bayside ppb 35.9 34.5 33.4 32.5 31.5 30.6 30.5 30.9 31.6 32.3 32.6 33 34 35 35.6 36 36.2 36.5 36.7 35.9 33.2 29.5 26.7 24.5
Milwaukee Milwaukee-16th St. Health Center ppb 34.3 33 31.7 30.6 30 29 28.4 28.4 28.9 29.5 30.4 31 31.4 32.2 33.1 33.8 34 34.2 34.3 33.9 32.7 31.1 29.1 27.3
Milwaukee Milwaukee-UWM UPark ppb 38.3 36.9 35.6 34.4 33.4 32.6 32.3 32.7 33.3 33.8 34.3 34.8 35.8 36.7 37.3 37.7 38.1 38.4 38.6 38.5 37.5 36 34.1 31.9
Outagamie Appleton ppb 34.8 33.9 33.7 34.1 34.6 35.1 35.7 36.2 36.9 37.3 37.5 37.6 37.8 38.1 38.4 38.7 39 39.8 40.4 39.5 38.3 36.2 33.9 31.4
Ozaukee Grafton ppb 37.9 36.4 35 34 32.9 32 31.7 32.1 33 34 34.6 35.3 36.4 37.3 38 38.1 38 37.9 37.9 37.1 35.5 34.1 32.5 31.3
Ozaukee Harrington Beach Park ppb 36.4 34.9 34.1 33.4 32.6 31.5 31.2 31.7 32.8 33.7 34.2 34.9 35.8 37 37.6 37.8 37.9 38 38.2 37.5 36.3 35.3 34.3 33.5
Racine Racine-Payne & Dolan ppb 36.3 35.1 33.5 32.2 31.3 31 30.5 30 30.3 31.1 32 33.1 34.1 34.7 35.3 36.1 36.5 36.8 37 37 36.5 35.9 35.3 34.6
Rock Beloit-Converse ppb 35 33.8 32.3 30.9 29.9 29 28.4 28.5 28.8 29.7 31.2 32.8 34.4 36 37.6 38.5 39.3 39.9 40 39.5 37.8 36.7 35.3 34.4
Sauk Devils Lake ppb 35.7 34.9 34.4 34.2 33.9 33.6 33.4 33.8 34.6 35.4 36.3 37.4 38.8 40.3 41.9 43.2 44.2 45.2 46 46.6 46.4 44.6 42.4 39.8
Sheboygan Sheboygan-Haven ppb 35.9 34.7 33.7 32.9 32.2 32.2 32.7 33.3 34.3 35.1 35.9 36.4 36.7 36.8 37 37.2 37.3 37.3 37.2 37.3 37.1 36.4 35.5 34.2
Sheboygan Sheboygan-Kohler Andrae ppb 34.6 32.5 31.8 31.8 31.5 31.2 31.6 32.2 33 33.9 34.6 35.3 35.8 36.1 36.2 36.3 36.3 36.4 36 35.2 34 31.8 29.6 27.7
Vilas Trout Lake ppb 37.9 37.9 38 38.1 38 37.9 37.8 38.3 38.9 39.8 41.1 42.8 44.6 46.3 48 49.1 50.1 50.6 50.4 49.7 48.8 47.8 46.2 45.1
Walworth Elkhorn ppb 35.9 35.1 34.3 33.4 32.7 31.7 30.9 30.6 30.6 30.7 31.1 31.9 32.8 34 35.4 36.4 37.3 37.9 38.1 38.1 37.5 36.8 35.9 35.2
Waukesha Waukesha-Cleveland Ave. ppb 37.5 36.1 35.1 34.4 33.2 32.6 32.6 32.8 33.2 33.8 34.5 35.2 36.3 37 37.6 38 38.4 38.8 39.1 39.1 37.9 35.7 33.2 30.4