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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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Friday, 
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 43.3 42.5 41.6 40.9 39.9 39.7 38.7 37.5 37.1 36.8 37.1 37.5 38.1 38.3 39.6 41 41.3 41.6 41.4 40.8 39.1 37.7 36.4 35.5
Brown Green Bay UW ppb 38.8 38.5 37.9 37.5 37.3 37.3 37.9 37.4 36.7 36.5 36.9 37.7 39 40.6 42.2 43.6 44.4 44.5 44 43.1 41.7 40.4 39.2 37.9
Columbia Columbus ppb 40.2 38.5 37.1 36.8 36.5 35.1 34 33.4 33.3 34 35.4 36.9 38.8 40.9 42.6 43.7 44.1 43.6 42.6 41.6 40.7 39.8 39.2 38.3
Dane Madison East ppb 36.8 35.2 34.7 34.9 34.8 33.1 32 31.5 31.8 32.9 34.2 35.7 37.3 39.5 41.5 42.9 43.2 42.8 42.4 41.8 40.8 39.9 39 38.4
Dodge Horicon Wildlife Area ppb 40.2 38.8 37.7 36.6 36.2 36 35.1 34.2 33.6 33.7 34.4 35.8 37.7 39.5 41.3 42.8 43.8 44.2 43.4 42.4 41 40 38.9 38.1
Door Newport Park ppb 37.2 37 37.2 37.3 37.3 37.8 37.8 37.8 38.6 38.2 37.8 37.9 38.2 38.6 39.4 40.5 40.9 41.6 42.1 41.7 40.6 39.2 37.1 35.3
Eau Claire Eau Claire DOT Sign Shop ppb 37.2 37.7 37.6 36.8 35.3 33.7 32.5 31.9 31.6 31.5 31.6 31.6 32.7 34.3 36.1 37.5 38.9 40.2 41.6 42.5 42.6 42 41.9 41.6
Fond du Lac Fond Du Lac ppb 38.9 37.7 36.7 35.4 34.4 34 33.4 32.6 32.1 32 32.7 34 35.9 38 39.8 41.2 42.1 42.5 42 41 39.6 37.8 36.6 35.7
Forest Potawatomi ppb 37 37 37 37.2 37 37.2 37.3 36.7 35.9 35.4 35.4 35.6 36.2 37 37.9 38.6 39 38.7 38.1 37.7 37.5 37.2 36.7 36.5
Jefferson Jefferson-Laatsch ppb 38.1 37.2 35.9 35.2 35 34 32.9 32.1 31.5 31.6 32.6 34 35.9 37.9 39.9 41.4 42.5 42.9 42.5 41.8 40.6 39.2 38.1 37.1
Kenosha Chiwaukee Prairie ppb 39.6 37.8 36.3 34.9 34 33.7 32.4 31.4 31.1 31.2 31.5 31.7 32 34 36.9 39.2 41.1 42.6 43.6 44.8 45.2 44 42.3 40
Kenosha Kenosha-Water Tower ppb 38.7 37.1 35.5 34 32.9 32.2 31.2 30.5 30.3 30.3 31.2 32.7 34.6 37 39.5 41.5 43.5 44.7 45 44.5 43.3 41.7 39.7 37.5
Kewaunee Kewaunee ppb 47.6 45.3 42.8 40.6 38.8 38.3 38 37.7 37.2 36.8 36.4 36.4 37 37.9 39.1 39.2 38.8 38.2 38.4 38.3 37.7 36.7 36.1 36.4
La Crosse La Crosse DOT ppb 39 39.1 38 36.7 35.7 34.9 34 33.5 33.5 33.8 34.4 34.9 35.5 36.4 37.3 38.2 38.9 39.7 40.4 41.4 42.2 42.4 42.5 42.4
Manitowoc Manitowoc ppb 43.9 41.7 39.5 37.2 35.4 34.9 35 34.7 34 33.4 33.1 33 33.7 34.6 35 34.8 34.6 34.9 35.4 35.3 34.7 34 33.5 33.9
Marathon Lake Dubay ppb 36.4 37.1 38 38.5 38 36.5 35 33.9 33.6 33.9 34.6 35.4 36.4 37.6 38.4 38.8 38.9 39.2 39.3 39.3 39.3 39.2 39 39.2
Milwaukee Bayside ppb 39.8 38.3 37.1 35.9 34.1 33.2 32.6 31.9 31.2 30.8 30.8 31.6 33.6 35.8 38.1 40 41.7 42.8 43.3 43 42.2 41 39.5 37.4
Milwaukee Milwaukee-16th St. Health Center ppb 36.5 35.8 35.2 34.7 33.3 32.4 31.2 30.3 29.6 29.2 29.2 29.7 31.2 33.5 36.4 38.5 40.1 41 41.4 41 40.2 39.1 37 34.7
Milwaukee Milwaukee-UWM UPark ppb 39.7 38.5 37.7 36.6 35.1 34.3 33.7 32.9 32.2 31.7 31.6 32.2 33.8 36 38.4 40.5 42.1 43.4 44.1 44.2 43.5 42.4 40.6 38.5
Outagamie Appleton ppb 41.1 40.1 39 38.6 37.9 38 37.3 36.3 35.7 35.9 36.4 37.4 38.9 40.7 42.2 43.3 43.6 43.4 42.5 41.3 40.2 38.9 37.5 36
Ozaukee Grafton ppb 42.4 40.9 39.5 38.7 36.5 34.8 33.9 33 32.2 31.6 31.9 32.7 35 37.6 39.9 41.8 43.3 44.3 44.4 44 43.1 41.6 40.3 38.8
Ozaukee Harrington Beach Park ppb 43.4 41.1 39.4 38.1 36.8 35.2 34.7 34 33.3 32.7 32.6 33.1 33.8 34.6 34.8 35.1 36.5 37.7 38.3 38.4 38.2 38.3 38.5 37.9
Racine Racine-Payne & Dolan ppb 40.1 38.3 36.8 35.6 34.6 34.5 33.8 32.9 32.3 32.3 32.7 32.4 32 32.3 33.9 36.2 38.4 39.8 40.3 41.2 42.4 42.5 41.8 39.8
Rock Beloit-Converse ppb 37.5 37 37 37.4 36.9 35.6 34.5 33.7 33.1 32.9 33.5 34.8 36.6 38.9 41.2 43.1 44.5 44.7 44.2 43.3 42.3 41.5 40.5 39.4
Sauk Devils Lake ppb 38.5 37.6 37.4 37.6 36.3 34.8 33.8 33.6 34.1 34.9 35.9 37.2 39.1 41 42.3 42.8 42.5 41.9 41.3 40.8 40.2 39.8 39.6 39.6
Sheboygan Sheboygan-Haven ppb 42 40.5 39.3 38.8 37.6 36.7 36.7 36 35.4 35.3 35.9 36.7 38.1 38.9 39 39 40 40.4 39.8 38.9 37.7 37 36.6 36.3
Sheboygan Sheboygan-Kohler Andrae ppb 47.1 44.2 41.3 38.6 36.6 35.8 35.8 35.5 34.8 34.3 34.2 34.7 35.5 35.9 35.5 35.6 36.3 37.3 37.6 37.5 37 36.5 36.5 36.5
Vilas Trout Lake ppb 39.6 39.5 39.3 39.3 39.2 39.7 40.1 39.6 38.7 37.8 37.2 36.7 36.8 37.1 37.1 37.2 37.9 38.6 39.4 40 40.9 41.6 42.1 42.4
Walworth Elkhorn ppb 37.5 36.2 35.1 34.6 34.5 34 33.3 32.7 32.1 32.2 33 34.1 35.7 38 40.1 42 43.5 44.2 44.1 43.5 42.3 40.4 38.7 37.4
Waukesha Waukesha-Cleveland Ave. ppb 39.4 37.9 36.8 36.1 34.9 34.4 33.6 32.3 31.9 31.8 32.5 33.7 35.5 37.7 39.8 42 43.5 44.3 44.4 43.7 42.8 41.3 39.3 37.9