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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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Monday, 
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 38 38.1 38.1 38.1 37.7 38.2 38.6 38.8 38.8 38.6 38.5 38.7 39.1 38.8 38.4 38.2 38.1 38 37.2 35.4 33.9 32.7 31.8 30.9
Brown Green Bay UW ppb 36.7 37.1 37.8 38.4 38.6 38.2 37.6 36.5 35.3 34.4 34.8 35.5 36.7 37 37.8 39.4 41.1 42.2 41.3 39.6 37.4 37 36.8 36.2
Columbia Columbus ppb 36.8 37.4 37.5 36.9 36.2 35.3 34.5 33.4 32 31 30.4 30 29.9 31.6 33.8 36.2 38.6 40.6 42.1 43.4 44.2 43.3 41.9 40.7
Dane Madison East ppb 35.2 35.9 35.5 35 34.5 33.6 32.2 30.6 29.2 27.7 27.4 27 26.5 27 29 31.7 34 36.1 37.9 39.1 40.2 40.6 40 39.1
Dodge Horicon Wildlife Area ppb 33.4 34.3 35.2 35.3 34.9 34.3 33.2 32 30.8 29.4 28.2 27.5 28.2 30.4 32.7 34.9 36.8 38.5 40 41.5 41.8 40.8 39.7 38.7
Door Newport Park ppb 38.4 38.6 39 39.2 39.2 39.1 38.9 38.5 37.9 38.1 38.3 38.6 39 39.2 39.6 40.6 41.4 41.4 41 40.7 40.5 40.3 40 39.4
Eau Claire Eau Claire DOT Sign Shop ppb 33.6 32.9 32.3 31.9 31.9 31.6 30.8 29.9 30.8 32.3 33.6 34.8 36.2 37.8 39.5 41.5 41.6 40.9 40.2 39.6 38.9 38.1 37.4 37
Fond du Lac Fond Du Lac ppb 35.2 35.9 36.6 37.5 37.4 36.9 36.1 35.1 34.1 32.8 31.6 30.7 31.4 33.2 35.1 35.7 37.5 39.2 41.1 42.2 42 41.1 40 39.7
Forest Potawatomi ppb 40.7 40.8 40.8 40.6 40.1 39.5 38.8 38.3 38.3 38.5 38.7 39 39.6 40.3 41.1 41.8 41.8 41.7 41.6 41.4 41.2 40.9 40.6 40.1
Jefferson Jefferson-Laatsch ppb 34.9 35.6 35.9 35.7 35.1 34.4 33.8 32.8 31.7 30.7 30 29.6 29.5 29.5 30.6 32.9 35 37 38.6 40.1 41.5 42.5 42.6 41.7
Kenosha Chiwaukee Prairie ppb 35.7 35 34.8 35.5 35.9 35.4 34.8 34 32.9 32.3 31.9 31.3 31.1 31.4 32.1 33.3 35 36.9 38.7 40.5 42 43.4 44.5 45
Kenosha Kenosha-Water Tower ppb 32.9 32.8 32.9 33.4 33.1 32.7 32.1 31.3 30.3 29.7 29 28.6 29 29.2 29.6 30.9 32.6 34.5 36.3 38.1 39.7 41.2 42.4 42.9
Kewaunee Kewaunee ppb 35.6 36.1 36.7 37.4 37.8 37.9 37.8 37.4 36.8 35.8 35.6 36 36.9 37.6 38.3 38.9 39.7 40.8 40.6 39.9 38.8 38 37.3 37.3
La Crosse La Crosse DOT ppb 35 34.7 34.3 33.9 33.4 32.4 31.4 29.3 28.3 27.2 27.5 29 30.9 33.1 35.2 37.9 39.4 40.9 41.3 40.5 39.5 38.6 38 37.6
Manitowoc Manitowoc ppb 33.5 34.4 35.1 35.8 36.3 36.5 36 35.2 34.6 33.8 33 33.3 34.2 34.2 34.9 37 38.3 39.6 40.8 40.7 39.7 39.1 38.1 36.9
Marathon Lake Dubay ppb 39.5 39.1 38.4 37.6 36.8 36.1 35.4 34.4 33.4 33.9 35.2 36.5 37.5 38.4 39.3 40.6 42 42.1 41.5 40.9 40.3 39.8 39.3 38.6
Milwaukee Bayside ppb 44.3 44 43.7 43.7 43.1
Milwaukee Milwaukee-16th St. Health Center ppb 32.2 32.3 32.9 33.8 33.9 33.8 33 31.9 30.7 29.9 28.9 27.9 27.4 26.8 26.9 28.2 29.5 30.5 31.6 32.8 34.2 36 37.4 37.9
Outagamie Appleton ppb 35.4 36.2 37 37.3 37.2 36.6 35.7 34.6 33.6 32.4 32.3 33.3 34.4 35.7 37 37.9 39.5 41 41.5 40.6 39.7 38.4 36.7 35.8
Ozaukee Grafton ppb 32.4 32.7 33.4 34.3 35 35 34.4 33.5 32.6 31.7 30.5 29.3 28.7 29.2 30.9 32.9 34.5 36 37.7 39.3 40.9 41.6 41.4 41
Ozaukee Harrington Beach Park ppb 33.8 34.2 34.9 35.8 36.3 36.5 36.3 35.5 34.8 34 32.9 31.7 31.4 32.3 33.9 35.4 36.9 38.3 39.8 41.3 42.2 42.2 41.6 41.3
Racine Racine-Payne & Dolan ppb 35.5 35.5 35.7 36.6 37.2 37.1 36.4 35.5 34.2 32.9 32 31 30.4 30.4 31.2 32.9 34.9 37 38.9 40.5 41.9 43.4 44.1 44.1
Rock Beloit-Converse ppb 33.7 33.8 34 34.1 33.8 33.3 32.6 31.7 31.1 30.3 29.5 29.2 28.8 28.7 28.6 28.9 30.1 32 33.9 35.3 36.4 37.5 38.8 40
Sauk Devils Lake ppb 36.3 36.6 36.5 36.1 35.8 35.4 34.7 33.9 33 32.1 31.2 30.4 31.2 32.8 34.6 36.4 38.2 39.9 41.6 43.2 43 42 41 40.2
Sheboygan Sheboygan-Haven ppb 32.7 33.5 34.6 35.5 36.3 36.4 36.1 35.4 34.8 33.9 32.8 32.2 32.9 34.2 35.6 37.2 38.4 39.6 41 41.6 41.1 40 38.8 37.7
Sheboygan Sheboygan-Kohler Andrae ppb 32.4 33 34 35 35.8 36.3 36 35.5 34.8 33.9 32.8 31.8 32.1 33.3 34.7 36.4 37.9 39.4 41 42.6 43 42.8 42.6 42.2
Vilas Trout Lake ppb 39.4 39.3 39.3 39.2 38.9 38.4 38.2 38.4 38.6 38.6 38.5 38.7 39.1 39.8 40.2 40.1 40 39.9 39.6 39.3 38.6 38.1 37.9 37.5
Waukesha Waukesha-Cleveland Ave. ppb 34.7 34.9 35.8 36.1 35.7 35 33.9 32.4 31.7 30.7 29.1 28.3 28.1 28 29.8 31 32.5 33.6 35 36.3 37.7 39.1 39.4 40.1