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Noise monitoring program
Active Air Quality Notification
  • An air quality ADVISORY for Unhealthy OZONE levels is in effect from 7/15/2025 12:00 to 7/15/2025 23:00 for these counties: Kenosha,Racine,Milwaukee,Ozaukee,Sheboygan,Manitowoc,Kewaunee,Door .

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 48 44.8 41.3 37.7 34.7 32.5 31.3 31.3 32.3 34.5 37.8 40.8 43.5 46.3 48.6 50.5 51.7 52.5 52.5 52.3 51.8 50.7 49.8 49.1
Brown Green Bay UW ppb 49.1 47.1 44.5 42 40.7 37.2 34.6 32.3 31.2 31.1 32.2 34.5 36.6 40.4 43.9 48.4 52.6 56.3 59.2 60.6 60.9 60.4 58.8 55.8
Columbia Columbus ppb 42.6 40.1 37.4 35.1 32.5 30.1 28.4 27.2 26.8 27.4 28.7 30.6 33.3 36.1 39.1 41.6 43.7 44.6 45 44.1 43 41.7 40 38.4
Dane Madison East ppb 42.1 39.5 37.1 34.9 32.7 30.6 28.8 27.5 27 27.3 28.1 29.8 32.1 35 38.1 41 43.5 45 45.7 44.4 42.1 38.4 34.4 30.6
Dodge Horicon Wildlife Area ppb 47.8 45 42.6 40.7 38.7 36.5 34.5 32.8 31.6 31.7 32.7 34.2 36.8 39.6 42.6 46 48.8 50.8 51.7 53.5 54.1 53.8 52.7 50.7
Door Newport Park ppb 55.2 54.1 53.1 51.8 51.3 49.3 47.5 45.9 44.9 44 43.7 44 44.8 47 49.6 52.7 55.9 59.1 61.8 63.3 63.3 62.4 60.9 58.4
Eau Claire Eau Claire DOT Sign Shop ppb 34 28.7 22.8 17.9 13.7 11.2 8.1 7.9 10.5 14 19 23.8 28.8 34.1 39.2 42.3 44 45 44.8 42.5 38.9 35.3 30.8 25.4
Fond du Lac Fond Du Lac ppb 44.5 42 39.2 36.8 34.9 33.3 32 30.8 30 30.4 31.9 33.5 35.4 38.2 42.3 46.7 50.8 52.7 55.3 57.7 58.8 57.9 55.2 52.2
Forest Potawatomi ppb 51.1 49.9 48.4 46.6 44.7 42.8 41 39.6 38.9 38.8 39.1 39.7 40.6 41.9 43.3 44.5 44.4 43.9 43.7 43 41.7 39.9 37.4 34.6
Jefferson Jefferson-Laatsch ppb 43.9 41.5 39.4 37.4 35.2 32.9 31 29.5 28.9 29.4 31 33.4 36.1 39.5 43.2 46.7 49.6 51.2 51.6 50.8 49.3 46.9 44 40.6
Kenosha Chiwaukee Prairie ppb 48.8 46.4 44 41.3 38.6 36.1 34.2 32.6 31.4 30.6 30.6 32.3 36.3 40.9 45.7 50 54.3 58.7 62 63.8 63.3 61.9 60.3 58.1
Kenosha Kenosha-Water Tower ppb 44.5 41.6 38.4 36.1 33.6 31.4 29.1 28.4 28.2 28.8 30.8 33.4 38.3 44.3 50.5 55.2 59.1 62 63.7 64 61.7 57.9 53.5 49.5
Kewaunee Kewaunee ppb 53.4 52.3 50.8 49.4 47.2 45.5 43.9 42.4 41.3 40.7 40.6 40.7 41.9 43.5 45.8 48.2 51.2 53.9 56.6 58.9 61 62.7 63.6 64.5
La Crosse La Crosse DOT ppb 45.2 42.2 38.5 34.5 30 25.6 22.3 20.3 19.2 19.1 19.8 21.1 22.3 24.6 26.8 28.1 29.3 29.6 29.7 29.4 29.8 28.8 26.7 24.8
Manitowoc Manitowoc ppb 54 52.6 50.8 49.2 47.3 45.6 43.9 42.1 40.2 39.6 39.6 39.7 40.4 41.3 43.2 45.8 49.1 52.2 55.1 57.8 60.1 62.2 63.2 63.4
Marathon Lake Dubay ppb 46.6 43.4 40.8 38.3 35.9 33.9 31.6 29.4 28.2 27.7 27.5 28 29 30.3 32.6 35.1 37.2 38.4 38.4 38 36.9 36.1 34.5 32.6
Milwaukee Bayside ppb 50.8 49.3 47.6 45.8 44 42.1 40.1 38.1 36.4 34.9 34.4 34.9 37.5 41.4 45.7 50.4 54.8 59.1 62.9 65.4 65.8 64.8 63.3 61.5
Milwaukee Milwaukee-16th St. Health Center ppb 38 36.5 34.4 32.9 31.4 29.4 27.5 25.6 24 22.5 21.6 21 21.4 25.3 31.6 38.2 43.6 47.7 50.6 52.5 53.3 51.2 46.7 43.9
Milwaukee Milwaukee-UWM UPark ppb 47.6 46 44.2 42.8 41.1 39.6 38.1 35.8 33.8 32.6 32.3 33.1 36.4 41.3 46.2 51.2 56 60.1 63.4 65.1 64.6 62.5 59.9 57.6
Outagamie Appleton ppb 46.8 45 43.4 41.4 39.4 37.6 36.1 35.1 34.4 34.1 34.5 35.9 38 41.2 44.7 48.6 52.9 55.6 56.8 57.1 56.6 55.1 53.1 50.2
Ozaukee Grafton ppb 50.8 49.3 47.2 45.5 43.7 41.7 39.7 38 36.5 35.3 35.1 35.2 37 40.3 44.2 48.5 52.8 57 61.2 63.9 65 64.5 63.2 61.5
Ozaukee Harrington Beach Park ppb 51.1 49.5 47.8 46.5 44.7 42.8 41.1 39.5 38.1 37.3 36.7 36.5 37.7 40.3 43.5 47 50.9 54.9 58.6 61.5 63.4 63.9 63.5 62.3
Racine Racine-Payne & Dolan ppb 49.2 47.3 45.2 42.7 39.9 37.2 34.9 32.6 30.9 29.7 29.1 30.3 34.4 38.8 43.4 48.1 52.4 56.8 60.5 62.4 61.6 60.2 58.9 57.2
Rock Beloit-Converse ppb 43.2 40.9 38.8 36.6 34.2 31.9 29.9 28.6 28.1 28.3 29.5 31.7 34.7 38.1 41.8 45.1 47.9 49.7 50.5 50.5 49.9 48.5 46 42.7
Sauk Devils Lake ppb 41.9 39 36.6 34.2 32 29.9 28.1 26.5 26 26.4 27.2 28.7 30.7 33.6 36.6 39.8 42.5 44.3 45.4 45.7 43.7 40.7 37.5 33.6
Sheboygan Sheboygan-Haven ppb 50 48.2 46 44.3 42.4 40.4 38.4 36.6 35.3 35 35.5 36.3 38.7 42.9 47.8 52.6 56.9 60.8 64.1 65.9 66.1 64.7 62.6 60
Sheboygan Sheboygan-Kohler Andrae ppb 49 47.5 45.9 44.7 43.2 41.6 40.1 38.8 37.6 37 36.7 36.7 37.5 38.8 40.5 42.8 45.3 48.2 51.1 53.5 55.4 56.9 58 57.8
Vilas Trout Lake ppb 50.6 49.6 48.2 46.4 43.7 40.6 37.6 36.4 36.5 37.2 38.4 40.4 42.2 44.5 47.6 49 49.5 50 50.6 50.8 51.8 52.2 51.5 51
Walworth Elkhorn ppb 43.7 41.8 39.9 38.1 36.2 34.3 32.5 31.4 30.8 30.9 31.7 33.3 35.8 38.6 41.4 44.1 46.4 47.8 48.4 47.6 46.2 44.5 42.1 39.4
Waukesha Waukesha-Cleveland Ave. ppb 46.6 44.3 41.6 38.8 36.3 33.3 30.5 28.9 28 28 29 31.2 33.8 37 40.7 44.8 49.9 53.6 55.7 56.7 57 56.8 55.6 52.4