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Noise monitoring program
Active Air Quality Notification
  • An air quality ADVISORY for Unhealthy PM2.5 levels is in effect from 8/4/2025 12:00 to 8/5/2025 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,Juneau,Jefferson,Kenosha,Kewaunee,Lafayette,La Crosse,Langlade,Lincoln,Manitowoc,Marathon,Marinette,Marquette,Menominee,Milwaukee,Monroe,Oconto,Oneida,Outagamie,Ozaukee,Pepin,Pierce,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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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 37.5 38.1 38.9 39.5 40.1 40.5 40.9 41.5 42.4 43.5 44.9 46 46.5 45.7 44.3 42.2 39.6 36.6 33.2 29.6 25.6 22.4 19.4 16.4
Brown Green Bay UW ppb 29.2 27.2 26.5 26.3 26.2 26.7 27.7 29.3 31.4 34 36.7 39.5 41.8 44.2 46.5 48.3 49.1 47.6 45.1 43.5 41.4 39.9 37.1 35.1
Columbia Columbus ppb 35.8 32.6 29.9 28.4 26.5 25.2 24.4 25 27.1 30.4 33.9 37.5 41.3 45.1 48.9 51.4 53.1 53.9 53.9 53.1 51.9 50.3 48.6 46.4
Dane Madison East ppb 32.6 30.3 28.6 27.3 26.7 26.3 27.1 29.2 32.1 34.9 37.4 40 42.9 46.2 49.7 52.6 54.1 54.7 54.7 54.5 54 52.5 49.7 46.8
Dodge Horicon Wildlife Area ppb 33.7 31.5 29.6 27.9 26 24.7 24.6 25.4 27.1 29.8 33.3 37 41.2 45.3 49 52 54.1 55.3 55.6 55.5 55 53.7 52 50
Door Newport Park ppb 38.4 37.3 36.1 35 33.9 32.3 31.2 32 33.3 35.3 37.8 39.9 42.1 45.4 48.6 50.1 51 51.1 49.8 48 45.9 41.9 36.8 31.6
Eau Claire Eau Claire DOT Sign Shop ppb 45 43 39.6 37.1 36.3 36.6 36.9 35.2 36.1 36.7 37.9 38.9 40.1 40.5 40.7 42.6 41.7 39.9 39.8 40.4 38.5 35.7 31.6 27.6
Fond du Lac Fond Du Lac ppb 32.6 29.7 27.3 25.4 25.3 25.6 26.7 28.3 30.6 33.5 36.8 40.3 43.8 47.1 49.6 51.4 52.4 52.4 51.4 50.2 49.4 48.2 46.3 44.6
Forest Potawatomi ppb 32.9 33 33.4 34.4 35.5 36.3 36.9 37.4 37.9 37.7 38.1 39.5 41.2 43.1 45 46.2 46.3 46.2 44.8 41.4 36.6 31.6 27 23.2
Jefferson Jefferson-Laatsch ppb 28.9 25.1 21.7 19.5 19 18 17.9 19.7 22.5 26.3 30.5 34.8 39.6 44.6 48.9 51.7 53.6 54.7 55.5 55.2 54.5 53.2 51.4 49.2
Kenosha Chiwaukee Prairie ppb 40.1 38.5 35.8 32.5 30 28.1 27 27.8 29.5 31.8 36.1 41.4 46.2 50.7 56.4 61.3 64.1 64.9 64.6 63.5 61.8 59.5 55.6 52.2
Kenosha Kenosha-Water Tower ppb 39 36.6 33.9 31.5 29.6 27.9 26.2 26 28.1 31.3 35.9 40.3 44.7 48.8 53 56.6 59 60 59.9 59.1 57.5 55.7 53.1 51.2
Kewaunee Kewaunee ppb 32.2 30.4 29.4 29.1 28.1 27.5 27.7 29.4 32.1 35.7 39.2 42.4 46.2 49.9 52.7 54.3 54.4 54.5 53.2 51.9 50.7 49.5 48.7 47.8
La Crosse La Crosse DOT ppb 36.1 33.2 29.9 28.4 27.7 27.1 27 27.4 28.4 30.2 33.3 35.5 37.3 39.4 42.1 44.6 46.9 48.6 48.8 47.4 45 42.3 39.1 34.8
Manitowoc Manitowoc ppb 31.5 29 26.1 24.1 21.5 19.5 18.6 19 20.7 23.9 28.4 33.4 39 44.1 48.4 51.6 53.7 53.9 51.6 47.7 45.6 43 41.8 40.9
Marathon Lake Dubay ppb 35.7 34.7 33.6 32.9 32.1 31.4 30.9 30.6 30.9 32.2 34.2 35.8 36.2 36.5 38.1 39.8 40.2 40.6 40.3 39.6 39.3 39.2 37.7 35.5
Milwaukee Bayside ppb 33.6 32.6 31.6 30.7 29.1 27.6 27.4 28.6 30.9 33.9 37 40.2 44.1 48.3 52.2 55.2 56.7 57.1 57.1 56.9 56 55 53.2 51.8
Milwaukee Milwaukee-16th St. Health Center ppb 32.6 32.3 32 31.2 30.2 29.1 28.5 29.1 30.1 31.8 34.5 37.9 41.5 45.5 49.2 52 53.8 54.4 54.3 53.8 53.3 52.2 50.6 49
Milwaukee Milwaukee-UWM UPark ppb 37 36.7 36.1 35.3 33.6 31.8 30.6 30.9 32.2 34.1 36.9 40.2 44.3 48.6 52.5 55.4 57.3 57.8 57.8 57.7 57.2 56.2 54.8 53.1
Outagamie Appleton ppb 33.5 32.4 31.1 30.4 30.6 30.9 31.2 31.6 32.8 35.1 37.7 40.5 43.6 46.7 49.7 51.7 51.8 50.7 48.3 46.7 44.7 43.5 41 38
Ozaukee Grafton ppb 32.2 31.6 31.1 30.1 29 27.9 28.1 29.4 31.5 33.8 36.4 39.6 43.3 47.3 50.4 52.9 54.3 54.7 54.6 54 53.6 52.8 51 50
Ozaukee Harrington Beach Park ppb 32.3 30.7 29.4 28.7 27.6 26.6 26.2 26.9 28.7 31.1 34.4 37.8 41.9 45.8 49.2 51.8 53.8 55.1 55 54.4 54.7 53.8 52.1 50.9
Racine Racine-Payne & Dolan ppb 41.2 40.1 38.2 36.1 34 31.9 30.1 29 29.5 31.6 35.5 39.9 44.4 48.7 53.3 57.2 59.5 60.6 60.6 60.1 59 57.5 55.5 54.1
Rock Beloit-Converse ppb 27.5 22.7 17.5 13.5 11.2 9.5 10 12 15.2 19.8 25.5 31.6 37.7 43.2 47.6 51 53.6 55 55.1 54.4 53.4 52.1 50.5 48.3
Sauk Devils Lake ppb 28.6 26.5 25.5 26.3 28.8 30.9 32.9 35 37.6 40.4 42.3 43.8 45.1 46.8 48.7 50.7 52.3 53.3 53.6 53.4 51.8 49.3 47.4 45
Sheboygan Sheboygan-Haven ppb 31.1 29.2 27.4 25.8 24.5 23.9 24.4 25.6 28.3 31.7 35.6 39.8 44.3 48 51 53.2 54.1 53.9 52.9 51.8 50.3 49 47.9 46.7
Sheboygan Sheboygan-Kohler Andrae ppb 33 31.4 30 28.5 26.7 25.1 24.6 24.8 25.9 27.8 29.9 33.5 38 41.7 45.5 48.4 50.7 52 53.2 55.4 55.7 54.9 53.4 52.9
Vilas Trout Lake ppb 34.4 35.2 36.2 37.1 38 38.8 39.7 40.7 41.3 42 43.7 45.5 47.3 48.9 49 46.9 44.3 41.1 36.3 31.5 25.6 19.8 15.1 11.9
Walworth Elkhorn ppb 39.2 36.6 34 32 30.4 29.3 28.5 29 30.8 33.3 36.9 41 45.5 49.5 52.5 54.4 55.6 56.8 56.9 55.6 53.8 51.7 49.5 47
Waukesha Waukesha-Cleveland Ave. ppb 37.1 34.5 32.1 29.8 27.6 25.1 23.3 22.7 24 27.1 31 35.2 40.1 45.3 49.9 53.3 55.2 55.8 56.2 56.1 55.4 54.2 52.6 50.2