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Noise monitoring program
Active Air Quality Notification
  • An air quality ADVISORY for Unhealthy for Sensitive Groups OZONE levels is in effect from 8/7/2025 12:23 to 8/7/2025 23:00 for these counties: Door,Kenosha,Kewaunee,Manitowoc,Milwaukee,Ozaukee,Racine,Sheboygan,Walworth,Washington,Waukesha .

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 32.1 31.1 31.1 30.9 29.5 27.3 25.7 24.2 23.3 22.9 22.5 22.4 23.3 24.9 26.2 27.4 28.4 29.5 30.2 30.5 30.4 30.3 30.4 30.4
Brown Green Bay UW ppb 47.6 46.4 44.3 41.1 37.1 34 33.7 34.1 33.7 33.4 33.5 33.6 34.5 35.8 36.5 37.6 38.3 38.5 38 37.4 36.7 36.8 36.1 35.1
Columbia Columbus ppb 36.9 34.5 32.3 30.5 29.2 26.9 25.1 24.3 24 24.8 27.4 30.7 32.9 36.1 39.3 42.5 45.4 46.7 46.4 46 44.5 43 41.7 39.8
Dane Madison East ppb 35.5 32.7 29 25.6 21.6 18.3 16.6 15.8 16.6 18.8 22.1 25.4 30.2 35.3 38.9 41.9 43.6 44.4 44.4 44 42.3 40.6 39.3 38.1
Dodge Horicon Wildlife Area ppb 36 34 32.9 31.9 30.1 28 26 24.7 24.1 24.3 25.4 27.4 30.6 34.5 38.7 42.5 45.9 48.6 49.5 50 49.6 48.2 46.3 44.1
Door Newport Park ppb 62.5 62.6 62.4 60.2 56.8 52.3 48 44 40.4 37.1 34 32.2 31.5 32.3 34 35.5 36.7 37.3 37.5 37.6 37.9 37 35.7 33.6
Fond du Lac Fond Du Lac ppb 37.5 35.8 34.1 32.7 30.4 28.9 28.1 27.5 27.7 29.1 31.4 34.7 39.8 44.3 48.5 52.4 54.9 55.4 54.6 52.9 50.8 48.6 46 43.1
Forest Potawatomi ppb 35.3 34.1 33.1 31.9 31 30.7 30.1 29.8 29.2 29.7 30.5 31 32.2 33.5 34.3 34.9 35.6 35.2 35.2 35.3 34.8 34.1 34.2 34.6
Jefferson Jefferson-Laatsch ppb 38.9 36.5 33.5 33 28.3 23.7 21.5 20.5 20.8 22.4 25.5 27.9 32.4 37.2 40.5 43.7 46.6 48.1 48.1 47.2 46.2 44.5 41.9 38.9
Kenosha Chiwaukee Prairie ppb 44.2 43.2 41.9 41.1 40.5 39.6 38.8 38.2 38 38.6 40.1 41.6 42.7 44.2 45.8 47.1 47.5 47.4 47 46.8 47 47 46.4 45
Kenosha Kenosha-Water Tower ppb 43.9 42.8 40.7 38.5 35.9 33.7 31.5 29.1 27.6 28 29.7 31.3 33.5 36.5 38.8 41.2 42.8 43.1 43.3 43.9 43.9 42.6 41.7 40.7
Kewaunee Kewaunee ppb 61.8 57.6 53.3 49.7 46.2 43.4 42 41.8 42.5 43.7 44.4 45.5 47.1 48.6 50 50.8 51.6 52.1 52.6 52.1 51.4 50.3 49.2 47.8
La Crosse La Crosse DOT ppb 20.1 15.5 11 6.7 4 2.6 1.5 1.5 2.8 5.6 10.3 16.2 22.1 27.6 33.3 38.5 42.4 44.6 45.4 44.9 43.8 42.5 40.9 38.6
Manitowoc Manitowoc ppb 54.1 47.3 41 34.9 29.5 25.7 23.8 23.7 24.5 26.6 28.7 31.9 34.6 37.5 40.1 42.6 45 47 48.4 48.1 45.5 42.4 40.9 39
Marathon Lake Dubay ppb 27.2 25.1 24 23.5 23.6 24.1 24.9 26.3 27.6 29.5 30.7 32.1 33.7 35.2 36.6 38.3 39.9 40.8 40.6 40.1 39.5 37.7 35.7 34
Milwaukee Bayside ppb 38.9 35.8 31.9 29.7 27.5 24.9 23.5 22.7 22.3 23.2 25.4 28.2 31.5 35.5 39 41.6 44.3 45.6 46.3 46.6 45.7 43.7 40.8 37.9
Milwaukee Milwaukee-16th St. Health Center ppb 35.8 35 34.2 32.6 31.2 29.3 27.2 25.8 25.2 25.2 25.8 27.3 29.5 32.3 35.4 37.6 39.1 40.7 41.6 41.5 40.5 39.3 37.4 34.7
Milwaukee Milwaukee-UWM UPark ppb 39.8 38.4 35.5 33.2 31.7 29.1 27.1 25.7 25.4 25.3 27 29.1 31.6 35.3 38.7 41.3 42.9 44.8 45.6 46.1 46 44.9 43 40.4
Outagamie Appleton ppb 31.5 29.8 28.4 27.5 27.5 28.5 29.8 31 32.3 32.9 33.9 34.9 35.7 36.8 37.8 39.1 40.8 42.6 43.6 43.9 43.6 42.4 41.8 40.9
Ozaukee Grafton ppb 35.6 33.1 29.5 26.3 23.7 22.1 22.5 22.4 21.6 22.4 24.9 28.2 32.5 36.1 39.7 42.2 44.8 46.1 47.1 47.6 46.9 45.7 43.3 40.3
Ozaukee Harrington Beach Park ppb 43.5 39.3 35.9 33.6 31.2 26.2 23.6 23.1 24.9 26.7 28.6 30.2 31.4 34.7 37.3 40 41.4 42.5 44 44.7 45 44.5 43 40.8
Racine Racine-Payne & Dolan ppb 41.9 40.5 39 38.4 38.5 37 35.1 33.1 32.3 32.1 32.2 32.8 33.8 35.7 38.1 40.1 41.3 42.2 43.5 44.6 45.3 45.5 45.4 44.8
Rock Beloit-Converse ppb 39.1 35.2 30.4 25.4 20.7 16.5 12.8 11.4 12.3 15.3 20.1 25.7 31.5 37 41.2 44.4 46.3 46.5 45.1 42.9 40.8 39.4 37.1 34.4
Sauk Devils Lake ppb 20.3 16.2 12.4 10.5 8.3 5.9 4.9 7.6 11.3 16.4 22 25.6 29.2 34.9 39.8 42.8 45.2 45.1 44.6 43.4 40.4 38.7 36.7 34.8
Sheboygan Sheboygan-Haven ppb 42.5 37.4 33.7 31.1 28.3 26.8 26.9 28.5 30.8 33.9 36 38.2 40.5 42.8 44.1 45 46 47 47.8 47.9 47.2 45.5 43.6 42
Sheboygan Sheboygan-Kohler Andrae ppb 52 45.5 39.3 34.7 30.7 27.5 24.9 22.3 22 23.9 26.7 29.8 32.3 34.6 37 39.3 41.2 43.8 45.2 45.6 45.5 44.9 44.7 44
Vilas Trout Lake ppb 32.2 30.6 29.7 28.9 28.7 28 28.8 29.7 30 30.6 31.5 32.5 33.9 35.6 36 35.8 36 36.7 37.7 37.8 36.7 36.2 36.2 36.6
Walworth Elkhorn ppb 43.1 41.7 40.1 39.6 40.2 36.4 32.7 29.9 28.3 28.3 29.4 31.2 32.9 36.8 40.4 43.3 44.6 44.3 44 42.7 41.5 39.5 37.2 34.8
Waukesha Waukesha-Cleveland Ave. ppb 37.1 35.6 33.5 31.8 30.4 28.4 26.4 25.8 26.1 27.7 30.5 33.3 36.2 39.1 42.2 44.9 46.8 46.5 45.5 44.2 42.9 41.7 40.2 37.4