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Noise monitoring program
Active Air Quality Notification
  • An air quality ADVISORY for Unhealthy PM2.5 levels is in effect from 8/2/2025 12:00 to 8/3/2025 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,Iowa,Green Lake,Iron,Jackson,Jefferson,Juneau,Kenosha,Kewaunee,La Crosse,Langlade,Lafayette,Lincoln,Manitowoc,Marathon,Marinette,Marquette,Menominee,Milwaukee,Monroe,Oconto,Oneida,Outagamie,Ozaukee,Pepin,Pierce,Polk,Portage,Price,Racine,Richland,Rock,Rusk,Sawyer,Sauk,Shawano,Sheboygan,St. Croix,Taylor,Trempealeau,Vernon,Vilas,Walworth,Washburn,Washington,Waukesha,Waupaca,Waushara,Winnebago,Wood .

8-HR Ozone Summary

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Tuesday, 
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 34.9 35.7 36.2 36.9 37.6 38.6 39.2 39.6 39.7 39.9 40.2 40.2 40.3 39.9 39.6 39.7 40 39.9 39.8 39.2 38.1 37.3 37.1 34.3
Brown Green Bay UW ppb 35.8 35.6 35.2 34.6 34 33.8 33.9 34.8 35.8 36.7 37.8 39.2 40.5 41.3 41.6 41.7 41.6 41.5 41.3 40.8 40.2 39.9 40 40.5
Columbia Columbus ppb 40 38.9 38.1 37.4 36.7 36.1 35.7 35.5 35.7 36.4 36.9 37.7 38.7 39.6 40.3 40.9 41.6 42.1 42.6 42.5 41.9 41 39.9 38.5
Dane Madison East ppb 40.1 38.9 37.5 36.1 35 34.2 34.1 34.2 34.2 34.7 35.6 36.8 38.1 39.3 39.9 40.4 41.1 41.6 42 41.9 41.5 40.4 39.3 38.1
Dodge Horicon Wildlife Area ppb 40.6 39.7 38.5 37.4 36.6 35.9 35 34.7 34.9 35.8 37 38.2 39.3 40.4 41.4 41.8 42.1 42 41.6 40.9 39.9 38.8 37 35.5
Door Newport Park ppb 31.6 31.6 31.7 31.9 32.7 33.6 34.3 34.9 35.8 36.9 38.3 39.7 40.6 41.4 41.9 42.2 42.2 41.9 41.6 41.4 41.4 41.3 41.2 41.1
Eau Claire Eau Claire DOT Sign Shop ppb 33.8 32.8 32.1 31.6 31.7 32 32.3 32.5 33.2 33.6 34.2 34.9 35.4 35.8 36.4 37.1 37.4 37.5 37.2 36.3 35.1 33.9 33.2 32.5
Fond du Lac Fond Du Lac ppb 37.3 36.5 35.7 34.7 33.6 32.4 31.5 31.1 31.3 32.2 33.3 34.7 35.8 37.1 37.9 38.1 38.4 38.3 37.8 37.2 36.9 36.4 36 35.5
Forest Potawatomi ppb 31.5 32.1 32.9 33.6 34.5 35.6 36.5 37.3 38.2 39 39.7 40 39.8 39.7 39.7 39.7 39.4 39.2 38.9 39.1 39.8 40.2 40.6 41
Jefferson Jefferson-Laatsch ppb 38.5 37.6 36.4 35.5 34.6 33.7 33.1 32.9 32.9 33.1 34 34.7 35.9 37.1 38.3 39.3 39.9 40.5 40.7 40.5 39.5 38.2 36.5 34.8
Kenosha Chiwaukee Prairie ppb 40.4 39 37.9 36.9 36 35 34.1 33.8 34 34.8 35.5 36.3 37.6 39 40.6 41.8 42.6 42.7 42.5 42.2 41.1 40.1 39 37.9
Kenosha Kenosha-Water Tower ppb 40.1 38.8 37.9 37 36.3 35.6 34.9 34.5 34.9 35.6 36.2 37.1 38.5 39.9 41.3 42.5 43.1 43.3 43.2 42.6 41.2 39.5 38.3 36.9
Kewaunee Kewaunee ppb 35.4 35 34.8 34.6 34.1 33.6 33.4 33.9 34.9 35.2 35.4 37 38.6 40.3 41.4 41.7 41.4 41.2 41 40.5 40.1 39.7 39.7 40
La Crosse La Crosse DOT ppb 37.6 36.7 36.2 35.7 35.7 35.6 35.9 36.2 36.8 37.6 38.3 39.3 40 40.7 41.1 41.7 42.3 42.7 42.9 42.6 40.2 37.4 36 34
Manitowoc Manitowoc ppb 33.7 33 32.5 32 30.8 30.1 29.3 29.2 30.3 31.5 32.6 33.7 35.4 36.8 38.1 38.5 38.7 38.5 38.3 37.9 37.3 36.5 36 36.1
Marathon Lake Dubay ppb 37.3 36.4 35.5 34.7 34.1 34.2 34.9 35.7 36.9 37.9 38.6 39.2 39.4 39.6 39.6 39.5 39.2 39.1 39.2 39.1 39.1 39 39 39.4
Milwaukee Bayside ppb 40.3 39.7 38.7 37.5 36.2 35.2 34.4 33.8 33.4 33.8 34.7 36.1 37.5 38.8 40 40.7 40.9 40.7 40.5 39.9 39 38.3 37.6 36.9
Milwaukee Milwaukee-16th St. Health Center ppb 33.7 33.3 32.7 31.8 31 30.2 29.5 29 28.7 28.9 29.6 30.6 31.6 32.7 33.8 34.6 34.9 34.8 34.3 33.6 32.8 32 31.3 30.4
Milwaukee Milwaukee-UWM UPark ppb 39.6 39 38.2 37.1 35.8 35 34.3 33.9 33.5 33.8 34.6 35.7 37.1 38.4 39.6 40.5 40.8 40.8 40.5 39.9 39.2 38.5 37.7 36.8
Outagamie Appleton ppb 37.8 37.5 36.5 35.5 34.9 34 33.4 34.1 35.1 36 37.5 39 39.5 40.2 40.6 40.7 40.6 40.5 40.2 39.8 39.3 39.2 39.3 39.7
Ozaukee Grafton ppb 39.7 39.2 38.1 37 35.7 34.6 33.5 32.8 32.4 32.8 33.9 35.2 36.5 37.8 39.1 39.7 39.9 39.8 39.3 38.5 37.6 36.9 36 35.1
Ozaukee Harrington Beach Park ppb 39.9 39.3 38.4 37.7 36.5 35.5 34.5 33.9 33.7 34.4 35.4 36.5 38.1 39.4 40.6 41.1 41.3 41.1 40.6 39.7 38.6 37.5 36.1 34.8
Racine Racine-Payne & Dolan ppb 40.4 39.6 38.8 37.6 36.4 35.3 34.4 33.9 34.1 34.3 34.9 36 37.4 38.7 40.1 41.4 42 42.1 41.8 41.1 39.9 39.2 38.4 37.7
Rock Beloit-Converse ppb 36.7 35.1 34 33 32.2 32 32 32.3 33 33.9 35.1 36.4 37.9 39.2 40.5 41.6 42.3 43.1 43.2 41.4 39.9 39.2 38 36.6
Sauk Devils Lake ppb 40.5 39.2 37.8 36.3 35.4 34.9 34.6 34.4 34.6 35.4 36.3 37.5 38.6 39.4 40 40.7 41.3 41.9 42.3 42.5 42.1 41.5 40.6 39.5
Sheboygan Sheboygan-Haven ppb 38.2 37.4 37 36.6 35.7 35 34.4 34 34.7 35.7 36.5 37.5 38.7 40 40.8 41 40.9 40.6 40.1 39.3 38.3 37.4 36.9 36.9
Sheboygan Sheboygan-Kohler Andrae ppb 38.6 37.9 37.4 36.8 35.7 34.7 33.9 33.4 33.5 34.4 35.3 36.3 37.8 39.1 40.2 40.8 40.9 40.8 40.4 39.8 39 38.2 37.7 37.5
Vilas Trout Lake ppb 32.8 33.5 34.5 35.3 36.4 37.2 38 38.8 39.6 40.1 40.1 40.3 40.4 40.5 40.3 40 39.5 39.3 39.5 39.2 38.9 38.8 38.8 39.2
Walworth Elkhorn ppb 38.7 37.8 36.8 35.8 35.1 34.3 33.8 33.8 34.3 34.5 35 36.2 37.5 38.8 40.2 41 41.5 41.8 41.8 41 39.9 39 37.6 36
Waukesha Waukesha-Cleveland Ave. ppb 40.3 39.8 38.7 37.4 36.5 35.4 34.7 34.2 33.6 33.8 34.6 35.6 36.6 37.7 38.9 39.8 40.4 40.5 40.3 39.8 39.1 38.1 37.2 35.8