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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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Friday, 
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 19.1 16 13.2 11.1 10.9 11.4 12.2 13.9 15.7 18.2 21.3 24.4 27.8 31 34.1 36.3 38.2 39.1 39.2 38.9 39 39.2 39 38.9
Brown Green Bay UW ppb 27.6 26.8 26.3 25.1 24.4 23.1 21.2 20 19.9 20.8 22.5 25.1 27.9 31.4 35.4 38.9 41.6 43.1 42.8 42 41 39.8 38.8 38
Columbia Columbus ppb 25.3 23.8 22.4 21.4 20.9 20.5 20.3 20.3 21.3 23 25.6 28.7 32.1 35.6 39.1 42.2 43.7 44 43.3 41.6 39.2 36.8 33.9 31.2
Dane Madison East ppb 29.3 28.3 27.2 26.4 24.4 22.3 21.1 20.2 19.9 20.6 22.8 25.6 29.5 33.4 36.2 38.8 40.8 41.7 41.6 40.5 39.4 38.8 38.4 37.3
Dodge Horicon Wildlife Area ppb 24 22.1 20.5 19.1 17.6 16.4 15 14.8 15.6 17.6 20.8 24.3 28.3 32.3 37.1 41.3 45.1 46.9 46.7 45.7 44.2 42.4 40.2 37.9
Door Newport Park ppb 28 28.1 27.8 27.1 26.2 25.2 24.5 24.4 24.9 26.1 27.6 29.5 31.7 34.1 36.4 38.1 39.3 40.1 40.9 41.8 43 43.9 44.5 45.3
Eau Claire Eau Claire DOT Sign Shop ppb 12 8.5 5.2 2.8 1 0.3 0.5 1.3 3.3 7.2 11.8 16.6 21.9 27.3 32.7 37.5 41.2 42.9 43.3 42.9 41.7 41 39.9 38.9
Fond du Lac Fond Du Lac ppb 23.8 22.5 21.3 19.8 18.7 17.8 16.9 16.5 16.9 18.4 20.9 24.4 28.3 32 35.7 38.9 41.6 43.2 42.7 41.8 40.8 39.2 37.4 35.4
Forest Potawatomi ppb 25.5 25.1 24.6 24.2 23.7 23.2 22.7 22.4 23 24.4 26.6 28.8 31 33.4 35.6 37.9 39.5 39.9 39.8 39.6 39.2 38.7 38.2 37.6
Jefferson Jefferson-Laatsch ppb 22.5 20 17.7 16.2 14.8 13.8 12.9 13 14.3 16.7 19.9 23.4 27.4 31.8 35.8 38.8 40.8 41.4 40.4 38.7 36.7 34.6 32.9 31.5
Kenosha Chiwaukee Prairie ppb 26.2 24.7 22.9 21.4 20.6 19.9 19.4 19.6 20.6 23.2 26.7 30.4 34.2 38.2 42.3 46 48.9 50.1 50.2 49.9 48.9 47 44.8 41.3
Kenosha Kenosha-Water Tower ppb 23.1 21.3 18.9 17.3 16.4 15.9 15.5 15.6 16.7 16.6 17.2 22.5 28 33.6 38.7 43.2 46.9 47.2 47.3 47.3 46.8 46.2 44.9 42.3
Kewaunee Kewaunee ppb 25.6 24.5 23.6 22.8 22.1 21.6 21.6 21.8 22.8 24.6 27.1 30.2 33.3 36.4 39.7 42.7 44.8 45.9 45.7 45.5 45.4 46 46.1 46
La Crosse La Crosse DOT ppb 22.3 19.5 16.5 13.5 11 9.6 8.7 8.5 8.7 9.4 12.8 17.3 22.2 26.8 31.7 36 40.2 44 45.6 46.6 47.6 47.6 46.7 45.7
Manitowoc Manitowoc ppb 20.5 19.5 18.8 18.2 17.2 16.2 15.3 15.3 16.6 18.6 21.2 24.3 28.3 32.6 37.3 40.4 42.3 43.7 44.5 45.2 45.7 46.1 45.6 45.2
Marathon Lake Dubay ppb 25.1 23.9 22.4 20.9 19.7 18.8 18.2 17.9 17.5 18.9 21.3 24.3 27.3 30.2 33.1 35.9 38.5 39.2 38.6 37.4 36 34.7 33.4 31.8
Milwaukee Bayside ppb 24.5 23.3 22 21.4 20.8 19.7 19.1 19.4 20.8 23.9 27.9 30.6 32.8 37.3 42.2 47.3 50.8 52.6 53.6 53.3 51.1 48.2 45.3 41.7
Milwaukee Milwaukee-16th St. Health Center ppb 24.2 23.3 22.5 21.6 20.7 19.6 18.6 18.2 19.2 21.2 24.3 28 32 37 42.1 46.3 48.4 48.6 47.9 46.3 44.5 41.8 38.5 35.5
Milwaukee Milwaukee-UWM UPark ppb 26.4 25 23.5 22.2 20.5 19.2 18.4 18.6 20.1 22.6 26 29.8 34.6 39.8 45 49.1 51.7 52.9 52.9 51 48.8 46.1 42.6 39
Outagamie Appleton ppb 22.4 21.4 20.3 19.3 18.3 17.1 16.1 15.7 16.5 18.3 20.9 24 27.7 31.5 34.9 37.9 40 41.2 41.8 41.8 41 40.5 40.1 39.4
Ozaukee Grafton ppb 24.9 23.5 22.2 21.3 20 18.8 18.1 18.3 19.7 22 24.9 28 31.7 35.7 39.5 43.8 47.9 50.6 52 53 52.2 50.7 48.3 45.1
Ozaukee Harrington Beach Park ppb 25.4 24.2 23.4 22.3 21.2 20.2 19.4 19.4 20.5 22.7 25.4 28.6 32.2 36 40.1 44.3 47 49.4 51.7 53.1 53.7 53.5 51.3 48
Racine Racine-Payne & Dolan ppb 24.7 23.7 22.3 20.9 19.6 18.5 17.7 17.8 19 21.2 24.1 27.8 32.4 37.7 42.4 46.5 49.4 51.4 52.6 52.8 52 50.5 49.1 46.9
Rock Beloit-Converse ppb 24.6 21.7 18.9 16.7 15.1 13.7 13.5 13.5 14.3 16.7 19.7 23.2 26.9 30.8 34.3 37.3 39.4 40.2 40.3 39.1 37.4 35.5 33.6 31.9
Sauk Devils Lake ppb 23.8 21.6 19.4 17.2 15.8 14.7 13.7 13.6 14.8 16.7 19.4 23 26.8 30.6 34.2 36.8 38.4 39.2 38.6 37.6 36.5 36.1 36.1 35.8
Sheboygan Sheboygan-Haven ppb 23 22.4 21.7 21.2 20.7 20.1 20 20.5 21.8 23.4 25.6 28 30.7 33.9 36.8 39.4 41.3 42.6 43.6 44.8 45.7 45.8 45.7 44.8
Sheboygan Sheboygan-Kohler Andrae ppb 20.4 19.5 18.9 18.1 17.4 17 16.7 16.9 17.9 20 23.1 26.5 30 34.2 38.5 42.2 45.6 47.7 49.5 51.3 53.1 54 53.7 52.1
Vilas Trout Lake ppb 26.7 25.3 23.7 22.5 21.4 20.7 19.7 19.6 20 21.5 23.9 26.5 29.1 31.7 34.6 37.2 39.5 41.1 41.4 40.9 40.2 39.6 39 38.4
Walworth Elkhorn ppb 23.9 22.1 21 19.8 18.3 17.3 16.6 17.3 18.5 20.6 22.9 25.9 29.2 33.1 37.2 40.3 42.2 41.8 41.5 40.7 39.9 38.6 36.6 34.5
Waukesha Waukesha-Cleveland Ave. ppb 26.1 24.4 22.7 21.6 20.2 18.9 18.2 18.3 19.7 22.4 26 29.7 33.6 37.3 40.9 44 46.1 46.6 45.9 44.3 42.4 41.1 39.9 38.3