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Noise monitoring program
Active Air Quality Notification
  • An air quality ADVISORY for Unhealthy OZONE levels is in effect from 7/16/2025 12:00 to 7/16/2025 19:00 for these counties: Kenosha,Racine,Milwaukee,Ozaukee,Sheboygan .

8-HR Ozone Summary

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Wednesday, 
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 27.4 25.2 24.3 24.9 25.7 26.4 27.4 28.6 29.8 31.6 33.9 35.1 36.1 37.3 38.4 39.5 40.5 41.2 41.4 41.4 40.5 39.2 37.9 36.1
Brown Green Bay UW ppb 36.4 35.8 34.6 35.8 35.9 36.2 34.8 32.5 30.6 29.2 29.7 29.2 28.8 29.3 30.8 33.3 35.8 38 39.2 40 40.9 41.2 41.1 40.8
Columbia Columbus ppb 39 38.1 37.2 36.6 36.1 35.9 35.7 35.5 35.3 35 35.1 35.7 36.9 38.2 39.7 41.4 43.1 44.8 45.9 46.3 46.2 45.8 45.2 44.5
Dane Madison East ppb 36 34.1 31.6 28.8 27.1 23.9 20 17.8 17 18 19.8 22.9 25.8 30.2 35.3 39 40.7 42 42.2 41.4 40.3 38.8 37 35.2
Dodge Horicon Wildlife Area ppb 38.1 37.3 36.4 35.6 34.1 32.8 30.3 28.5 27.1 26.5 26.6 27.5 29.5 31.2 34.2 36.7 39.3 41.1 42.2 42.6 42.8 43 42.9 42.6
Door Newport Park ppb 39.2 39.2 39.1 39 38.9 38.7 38.4 38.1 38 38.2 38.4 38.7 39.1 39.6 40.4 41.1 41.7 42.1 42.4 42.6 42.7 42.7 42.4 42.3
Eau Claire Eau Claire DOT Sign Shop ppb 24.7 22.8 21 17.9 16.3 16.9 17.2 17.3 17.8 20.2 22.3 26.5 29.8 31.7 33.6 35.8 37.6 38.9 39.2 39.3 39.1 37.8 33.9 30.1
Fond du Lac Fond Du Lac ppb 38.6 38.6 38.3 37.8 37.3 36.8 35.5 33.9 32.2 31.8 32 32.8 34 35.4 37.4 40.1 43 44.4 45.2 45.7 46 45.9 45.6 45
Forest Potawatomi ppb 41.7 41.2 40.7 40.2 39.9 39.6 39.3 39.1 38.8 38.8 38.9 39.4 39.5 39.6 45.9 45.9 45.7 45.4
Jefferson Jefferson-Laatsch ppb 36.5 35.5 34.9 34 33.3 32.3 29.6 28 27.6 27.9 29 30.6 32.6 35 39.1 42.3 44.2 45.1 45.3 45 44.4 43.7 42.7 41.2
Kenosha Chiwaukee Prairie ppb 39 38.3 37.8 37.1 35.9 34.7 33.5 32.5 32 32.1 32.6 32.3 33.7 35.9 38.5 40.7 42.5 43.2 43.7 43.5 43.4 42.7 41 39
Kenosha Kenosha-Water Tower ppb 35.8 34.6 33.7 32.5 30.6 27.9 25.7 24.6 24.1 24.4 25 26.3 28.8 32.4 35.9 38.6 40.2 40.9 39.8 38.4 36.4 34.5 32.7 30
Kewaunee Kewaunee ppb 37.8 37.4 36.8 36.4 35.9 35.4 34.7 34.2 33.8 33.6 34.1 34.9 36.1 37.3 38.9 40.1 40.5 40.6 41.1 41.7 42.3 42.3 42 41.7
La Crosse La Crosse DOT ppb 25.3 21.8 18.3 13.7 10.3 9.5 9.3 10.8 13.4 16.3 19.5 24.2 28.4 33.3 37.5 40.2 42.2 43.7 44.3 42.9 41.8 40 37.3 33.8
Manitowoc Manitowoc ppb 34.3 33.7 33 32.7 32.4 32.3 32.5 32.1 31.7 31.6 31.8 32.2 33.1 34.4 36 38.2 40.1 41.5 42.5 42.9 41.9 39.6 37.2 34.4
Marathon Lake Dubay ppb 39.8 39 38.4 37.9 37.2 36.2 35.3 34.3 33.3 32.9 33.1 33.6 34.5 34.8 36.4 38.2 40.1 41.4 42 42.3 42.3 42.2 42.1 41.8
Milwaukee Bayside ppb 36.4 35.9 34.3 33.1 31.6 30 27.1 25.2 23.8 22.8 23.5 24.8 27.2 30.2 34 37.3 39.9 41.6 40.8 37 32.3 27.2 22 16.7
Milwaukee Milwaukee-16th St. Health Center ppb 29.8 28.7 27.6 26.4 25.1 23.4 20.7 18.3 16.3 15.4 16.1 18.1 21 24.4 28.4 31.9 34.8 36.9 36.7 34.5 30.7 26 21.2 16.4
Outagamie Appleton ppb 36.6 36.1 35.4 35.1 34.1 32.6 29.9 27.4 25.7 25 25.3 25.8 27.2 28.9 32 35.4 38.2 40.1 40.8 40.7 40.3 39.8 38.7 36.9
Ozaukee Grafton ppb 36.5 36 35.3 34.6 34.2 33.2 31.6 30.4 29.4 28.9 29.1 29.7 30.7 32.2 34.3 36.1 37.8 38.8 38.1 35.1 30.6 27.6 23.9 20.1
Ozaukee Harrington Beach Park ppb 37.2 36.9 36.5 34.6 34 32.4 30.7 29.4 28.4 27.8 27.9 29.9 31.6 34.2 36.6 38.6 40 40.8 41.1 41.4 40.4 39.1 37.5 36.2
Racine Racine-Payne & Dolan ppb 38.3 37.9 37.6 36.8 36 35.1 34.1 33.2 31.8 31.2 31.3 32 33.2 34.8 36.7 38.8 41.1 42.4 42.2 40.7 38.3 36.3 35.2 33.2
Rock Beloit-Converse ppb 36.4 35.8 34.8 34.2 33.7 30.4 27.9 26.5 25.9 25.6 26.6 27.6 29.6 33.8 37.6 39.7 40.8 41.2 40.6 38.9 37.5 35.9 34.8 33.4
Sauk Devils Lake ppb 39.5 39 38.5 37.9 37.2 36.7 36.1 35.9 35.7 36.1 36.7 37.7 38.7 39.7 41 42.1 43.3 43.9 44.2 44.3 44.2 43.9 43.6 43.1
Sheboygan Sheboygan-Haven ppb 36.9 36.5 36.1 35.9 35.7 35.3 34.7 33.9 33.2 33 33 33.6 34.4 35.5 36.8 37.7 39.3 40.1 40.4 40.3 39.6 37.7 35.7 35
Sheboygan Sheboygan-Kohler Andrae ppb 35 34.3 33.3 32.3 31.9 32 31.4 30.3 29 28.8 29.2 30.4 31.6 33 34.6 36.7 39.2 40.8 41.9 41.8 41.1 40.7 40.4 39.8
Vilas Trout Lake ppb 39.5 39 38.5 38.2 37.8 37.5 37.2 37 36.9 36.8 37.3 38 39 40.2 41.5 42.9 43.1 43.1 43.4 43.6 43.5 43.2 42.8 42.3
Waukesha Waukesha-Cleveland Ave. ppb 35.6 34.6 33.8 33.7 32.5 29.6 26.4 23.9 22.1 22.1 22.7 23.5 23.4 25.5 30.2 27.1 24.4