-
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

Filter by County:
Filter by Site:
Monday, 
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 36.2 35.1 34.1 33.6 33.4 33 32.4 32 32.2 32.6 33.1 34.2 34.9 36 37.3 38 38.3 38.2 37.9 36.9 35.9 34.2 32 30.7
Brown Green Bay UW ppb 28.9 30 30.8 31.3 31.6 32.3 32.5 32.1 31.8 31.9 32.1 32.6 33.2 33.7 34.7 35.9 36.6 37 37.3 37.1 36.4 35 33.6 32.3
Columbia Columbus ppb 29.9 30.4 30.9 31.3 31.6 31.7 31.4 31.2 31.5 32.3 33.2 34.5 35 36.1 37.1 37.8 37.8 37.5 37.1 36.1 35.3 34.4 33.2 32.4
Dane Madison East ppb 32.2 32.9 33.4 33.9 34.5 34.2 33.6 32.8 32.1 31.6 31.7 31.8 32.3 32.9 33.5 34.1 34.8 35.2 35 34.3 33.1 31.6 30.6 29.6
Dodge Horicon Wildlife Area ppb 28.5 28.8 29 29.2 29.5 29.7 30.5 31 31.1 31.8 32.8 34.2 35 36.3 37.1 37.7 38.2 38.3 37.9 37.1 35.9 35 33.6 31.9
Door Newport Park ppb 25.7 26 26.9 28.5 29.6 31.4 33.1 33.3 33.7 34.5 34.9 35.1 35.2 35.8 36.2 36.4 36.6 36.7 36.8 37 37.3 37.1 36.5 35.4
Eau Claire Eau Claire DOT Sign Shop ppb 32.1 32.2 32.2 32.1 32.2 31.6 30.7 30.1 30.4 30.6 31.3 32.9 33.6 34.7 35.9 36.6 36.4 36.1 35.2 33.7 31.9 29.4 27.5 25.9
Fond du Lac Fond Du Lac ppb 27.4 27.5 27.7 27.9 28 28.3 28.5 28.9 29.9 31.1 32.3 33.5 34.1 35.4 36.8 37.7 37.9 37.8 37.5 36.5 35.1 33.3 31 29.3
Jefferson Jefferson-Laatsch ppb 31 31.7 32.1 32.6 33 33.3 33.1 32.9 32.4 32 32 32.8 33.5 34.2 35.2 35.8 36.5 37 37.1 36.3 35.1 33.9 32.7 31.8
Kenosha Chiwaukee Prairie ppb 31.4 32 32.5 32.9 33.2 33.5 33.6 34.1 34.5 34.8 35 35.6 36 37 37.8 38 38 38.1 38 37.3 36.7 36.1 36 36
Kenosha Kenosha-Water Tower ppb 30.1 30.2 30.2 30.6 30.8 30.5 30.4 30.6 30.6 31.1 31.7 32.2 32.9 34 35 35.8 35.9 35.8 35.4 34.8 33.5 32.5 31.7 31.3
Kewaunee Kewaunee ppb 28.9 29.9 30.8 31.6 32 32.7 33.8 34.6 34.8 35.3 36.2 36.8 37 37.3 37.5 38 38.8 39 38.2 37.5 36.6 35.1 33.3 31.6
La Crosse La Crosse DOT ppb 33.4 33.3 32.9 32.4 32 31.1 30.3 30 29.6 29.8 30.5 30.9 31.3 32.1 32.8 32.9 33.1 33.3 33 32.7 32.4 32 31.8 31.8
Manitowoc Manitowoc ppb 26.5 26.9 27.2 27.7 27.9 28.3 29.1 29.9 30.7 31.6 32.6 33.7 34.2 35.6 36.8 37.8 38.3 38.6 38.6 37.8 36.8 35.6 34.1 32.5
Marathon Lake Dubay ppb 36.5 35.9 35.1 34.7 34.2 34.1 34.3 34.9 35.4 35.7 36 35.8 35.7 35.8 36 36.2 36.4 36.6 36.8 36.9 36.6 36.4 36 34.7
Milwaukee Bayside ppb 28.8 29.4 29.8 30.1 30.4 30.6 30.8 31.2 31.3 31.7 32.5 33.4 33.6 34.3 35.1 36.1 36.7 36.9 36.8 36.7 36.6 36.4 36.2 36
Milwaukee Milwaukee-16th St. Health Center ppb 27 27.8 28.3 28.8 29.2 29.2 29.4 29.6 29.7 29.5 29.6 29.6 29.8 30.5 30.7 31.1 31.5 31.8 30.9 30 28.6 27.3 26 25.2
Milwaukee Milwaukee-UWM UPark ppb 28.6 29.2 29.6 30 30.1 30.2 30.5 30.8 30.8 31 31.6 31.9 32.3 33.2 33.9 34.3 35.1 35.3 35.1 35.1 34.8 34.4 34 33.9
Outagamie Appleton ppb 30.2 31.4 31.9 32.2 32.5 33.1 33.6 34 33.9 37.5 36.9 36.4 35.5 34.2 33 31.7 30.1
Ozaukee Grafton ppb 29.1 29.4 29.7 29.8 29.8 29.8 29.7 30.2 30.7 31.4 32.4 33.5 34.1 35.2 36.3 36.8 37.1 37.1 36.7 36.4 35.8 35.2 34.9 34.6
Ozaukee Harrington Beach Park ppb 28.3 28.5 28.9 29.1 29.1 29.3 29.7 30.3 31.5 32.7 34 35.2 35.5 36.8 37.9 38.5 38.4 37.8 36.9 36.4 36.1 35.6 35.1 34.5
Racine Racine-Payne & Dolan ppb 29.8 30.4 30.7 30.9 31.1 31.1 31 31.4 31.8 32.1 32.7 33.4 33.7 34.4 35.2 35.7 35.8 35.9 35.9 35.8 35.4 35.1 35.1 35.2
Rock Beloit-Converse ppb 31.7 32.1 32.5 32.9 33.1 33.4 33.4 33.5 33.5 33.8 34.3 35.1 35.6 36.1 36.7 37.5 38 38.4 38.6 37.7 36.5 35.5 34.3 32.9
Sauk Devils Lake ppb 32.3 32.9 33.4 33.6 33.9 33.4 33.3 33.4 33.6 33.9 34.4 35.4 35.8 36.8 37.3 37.3 37.3 37.3 37 36 35.1 34.2 33.4 32.8
Sheboygan Sheboygan-Haven ppb 27.5 27.7 28.1 28.6 28.7 29.1 29.5 30.1 31.3 32.6 34 35.5 36.1 37.3 38.4 39.2 39.4 39.3 38 36.1 34.3 32.4 30.6 28.3
Sheboygan Sheboygan-Kohler Andrae ppb 24.9 25 25.1 25.3 25.5 25.5 25.9 26.8 28 29.2 30.7 32.2 32.8 34.1 35.3 35.9 36.1 35.9 35.4 34.9 34.6 34.3 33.9 33.5
Vilas Trout Lake ppb 33.7 34.7 34.8 34.4 33.9 33.3 33.1 33 32.7 32.3 31.8 31.5 31.5 31.5 31.4 31.7 31.9 31.6 31.3 30.7 29.5 28.2 26.7 24.9
Walworth Elkhorn ppb 30.4 30.9 31.2 31.4 31.7 31.7 31.4 31 31.1 31.4 31.8 32.4 32.8 33.9 35.1 36.1 36.8 37.2 37.3 36.8 36.2 35.1 33 30.7
Waukesha Waukesha-Cleveland Ave. ppb 29.5 30 30.5 31 31.3 31.5 31.8 32.1 31.9 31.9 31.6 31.5 32 32.8 33.5 34.1 34.8 35.4 35.6 35 34 32.4 30.9 29.4