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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 7/23/2025 13:45 to 7/23/2025 23:00 for these counties: Door,Kenosha,Kewaunee,Manitowoc,Milwaukee,Ozaukee,Racine,Sheboygan .

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 29.5 25.4 21.1 16.7 12.9 10 10.1 12.1 15.3 20.2 26.3 33.4 41 48.8 54.9 60 64.1 66.7 66.1 64.6 61.8 58.8 56.1 53.3
Brown Green Bay UW ppb 30.9 28.4 26.2 25.2 24.9 24.4 25.4 26.6 27.8 30.3 33.4 36.1 39 42.3 44.6 46.2 47.2 47.5 47 45.7 44.4 42.4 40 37.3
Columbia Columbus ppb 35.8 33.1 30.8 29.2 28.4 27.7 27.4 27.9 29.7 32.3 35.2 38 41 44.1 47.1 49.4 50.7 51.4 51.6 50.9 49.6 48.1 46 43.5
Dane Madison East ppb 29 24.5 22.3 20.5 19.2 18.5 18.6 19.8 22.9 26.9 29.8 33 36.4 39.7 42.9 45.7 47.6 48.9 49.6 48.7 46.7 44.7 43.2 41.8
Dodge Horicon Wildlife Area ppb 37.5 34.4 31.2 28.5 26.1 24 22.8 23.7 25.5 28.4 32 35.8 39.9 43.8 47.2 49.5 51.1 52 52.4 52 51.2 50 49 47.9
Door Newport Park ppb 38 37.2 36.7 35.9 35.5 35 34.1 34.3 34.8 35.2 36 37.5 39.3 40.7 42.4 43.3 44.2 45.1 45.2 45.2 44.7 44 42.9 41.6
Eau Claire Eau Claire DOT Sign Shop ppb 26.5 21.9 16.9 12.6 8.9 6.7 6.3 8.2 11.3 15.4 20.7 26.4 32.6 38.9 44.1 47.4 49.7 51.4 52.1 50.3 48.6 46 42.4 39
Fond du Lac Fond Du Lac ppb 33.7 31.1 29.5 28.3 27 25.7 24.9 26.7 29.9 33.4 36.8 38.7 40.2 43.3 46 48 49 49.1 48.5 47.2 46 44.5 43.2 42.2
Forest Potawatomi ppb 42.5 41.8 41 40.5 40.1 39.8 39.8 39.7 40 40.5 41.2 41.9 42.8 43.7 44.4 45.4 46.8 48.2 49.8 51.2 51.3 51.1 50.6 49.3
Jefferson Jefferson-Laatsch ppb 24.8 21.2 17.9 14.6 12.1 10.9 11.5 13 15 19.2 23.9 29.1 34.6 39.5 44 47.2 49.3 50.1 50.1 49.7 48.3 45.7 41.7 38.4
Kenosha Chiwaukee Prairie ppb 26.4 23.1 20.5 18.1 17.2 17.5 18 20 23.1 26.6 30 33.6 37.2 41.3 45.9 50.1 53.6 55 55.7 55.6 54.8 53 51.1 46.2
Kenosha Kenosha-Water Tower ppb 27.2 22.8 20 17.5 15.9 15 14.7 17.1 20.7 25.2 28.8 33 37.3 42 46.7 50.5 53.1 54.4 54.8 54.3 53.3 52.3 50.5 47.4
Kewaunee Kewaunee ppb 36.2 34.5 33.5 32.2 30.6 29.9 29.2 29.1 29.3 30.6 31.6 33.2 35.2 37.4 40.3 42.8 44.6 45.5 46.5 46.8 46.3 45.1 43.3 40.9
La Crosse La Crosse DOT ppb 34 30.8 27.2 24 20.1 17.6 16.5 16.4 17.3 19 21.8 25.8 31.7 36.7 40.5 44.2 47.1 49.5 51.1 51.2 49.1 46.7 44.7 41.2
Manitowoc Manitowoc ppb 27 24.2 22.1 21.3 21.1 21.3 22 23.6 26 28.7 30.2 31.4 33.2 35.5 38 39.9 40.8 41.3 42.3 43.1 43 42.8 41.8 38.7
Marathon Lake Dubay ppb 42.8 41.4 39.4 37.5 35.3 33.3 31.4 31.7 32.7 34.3 36.7 39.3 42.6 45.9 49.4 51.3 53.1 54.7 55.6 56.1 56.6 56.9 56.6 55
Milwaukee Bayside ppb 22.6 19.6 17 14.5 14.9 16.3 19.2 23.7 28.7 33 36.9 38.6 42 45.2 48 50.1 50.8 50.8 50.3 49.1 46.5 43 38.9 33.8
Milwaukee Milwaukee-16th St. Health Center ppb 8.7 6 5.5 7.4 9.4 11.4 13.8 16.8 21 24.4 26.8 29 31.7 35 37.6 39.4 39.5 39 37.6 36.1 33.9 30.4 26.8 22.8
Milwaukee Milwaukee-UWM UPark ppb 25.5 21.1 18.8 17.4 17.1 17 18.3 21 25.7 30.6 34 37.2 41.1 44.7 47.2 49.1 49.7 49.6 48.6 47.1 43.7 39.7 35.3 30.6
Outagamie Appleton ppb 34.8 32.5 30.9 29.6 28.9 28.3 27.7 28.4 28.6 28.9 31.8 35 38.3 41.7 45.3 48.1 48.5 48.5 48.5 47.7 46.2 44.3 42.2 40.8
Ozaukee Grafton ppb 27.5 25.4 23.6 23.7 23.8 24.3 26 27.5 29.4 31.9 34.6 37.2 40.5 44 46.5 47.8 48.6 48.4 47.8 46.8 45.8 42.9 40.3 38.3
Ozaukee Harrington Beach Park ppb 34.5 32.5 31.2 30.6 29.9 29.3 29.1 30.1 31.7 34.2 36.4 38.7 41.7 44.3 46.5 47.6 48.3 48.4 48.1 47.3 45.9 45.2 44.2 43
Racine Racine-Payne & Dolan ppb 29.1 25.7 23.5 21.9 21.1 21.1 21.5 21.5 23.9 27.2 30.4 34.1 37.9 42.1 46 48.8 50.7 51.5 50.7 48.9 46.6 42.9 38.6 34.6
Rock Beloit-Converse ppb 19.6 16 12.2 8.8 6.7 6.5 7.4 9.9 13.8 18.2 23.6 29.4 35.2 40.6 45 48.2 50.2 51.1 50.7 47 42.4 38.2 33.8 29.2
Sauk Devils Lake ppb 36.7 32.9 29.5 27.6 27.7 28.1 29 29.8 31.3 34.6 38.1 40.7 42.5 44.6 46.3 47.8 49.1 50 50.4 48.7 46.1 43.5 40.9 38.7
Sheboygan Sheboygan-Haven ppb 32.1 30.2 29.3 29.1 28.6 27.9 28.1 29.4 31.2 33.2 35.1 37.1 39.4 41.8 43.8 45.4 46.3 46.4 45.6 43.8 42.5 41.3 39.7 38
Sheboygan Sheboygan-Kohler Andrae ppb 32.2 30.2 28.6 28 28 28.4 28.9 30.1 31.2 33 34.6 36.6 38.7 40.8 42.5 43.6 44.5 44.9 45 44.6 44.3 43.9 42 42.1
Vilas Trout Lake ppb 41.2 39.8 38.1 36.6 35.1 33.3 32.3 32.6 33.5 35.1 38.3 41.7 45.8 50.2 54.4 57 59.1 60.8 61.7 62.2 62.5 60.9 57.7 55
Walworth Elkhorn ppb 34.4 31.8 30 28 26.7 24.8 23.6 23.7 24.9 27.9 31 34.9 39 43.3 46.8 49.5 51.4 52.3 52.2 51.7 51 50.4 49.5 48.9
Waukesha Waukesha-Cleveland Ave. ppb 20.2 15.2 10.9 7.9 7.3 8.4 10.7 14.2 18.1 23 28.1 32.8 37.1 41.2 44.3 47.2 49.6 50.7 50.9 50.4 48.8 46.7 44.4 40.5