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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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Thursday, 
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 44.5 43.6 42.2 41.3 40.5 39.6 39 38.8 37.8 37.1 37.6 39.1 39.4 39.1 38.9 39.1 38.9 39.4 39.4 38.9 38.7 38.5 37.8 37.6
Brown Green Bay UW ppb 42.9 40.5 38.9 37.4 35.4 34.3 33.8 34.3 34.3 34.8 35.8 38.3 43 48.9 54.6 60 64.5 68 70.1 70.2 68 64 59.9 56.1
Columbia Columbus ppb 42.8 40.6 38.3 35.5 32.3 29.7 28.7 28.1 28.5 30.2 32.4 35.2 38.7 42.3 45.4 48.1 50.3 52 53.2 53.6 53.4 53 52.3 50.8
Dane Madison East ppb 48.1 44 40.3 36.6 33.2 29.6 27.2 26.1 26.6 28.2 30.6 33.4 36.6 40.4 44 47.3 49.7 51.6 53.3 54.7 55.8 56.1 56 55.2
Dodge Horicon Wildlife Area ppb 49 47.3 44.9 42.1 39.1 36.3 34.9 34.2 34.4 36 38.4 41.7 45.6 50 54.2 57.8 60.4 62.2 64.5 65.5 65.7 65.4 64.4 62.9
Door Newport Park ppb 63.1 61.9 59.7 57.1 54.5 53 51.6 50.1 49 49.3 50.9 53.4 56.5 59.1 62.2 65.8 67.3 67.4 66.4 64.7 62.1 60.4 57.7 54.4
Eau Claire Eau Claire DOT Sign Shop ppb 44.2 43.8 42.6 41.2 39.5 36.7 34.3 32.9 31.6 31.2 32.6 34.8 37.3 41.1 44.8 47.9 50.5 52.5 53.5 53.6 53.1 52.3 50.9 49.2
Fond du Lac Fond Du Lac ppb 44.9 42.8 40.6 38.3 36 34.2 33.1 32.5 32.6 33.6 35.8 38.8 42.5 46.6 50.8 54.6 57.9 62.1 64 64.8 64.6 63.4 62.3 61.2
Forest Potawatomi ppb 51.7 51.1 50.2 49.3 48.1 46.3 44.3 42.2 41 39.9 39.8 41.4 43.3 45.7 47.7 49.7 49.8 49.8 50.4 49.8 49.3 49.8 50.8 52
Jefferson Jefferson-Laatsch ppb 45.5 43.2 39.9 36.2 33.1 30.7 29.3 28.9 29.6 31.5 34.6 38.6 43 47.3 51.2 54.5 57 58.9 60.1 60.8 60.6 59.6 58 56.4
Kenosha Chiwaukee Prairie ppb 54.6 53.2 51.7 50.9 48.4 45 41.9 39 37.2 36.7 38.7 41.6 46.4 52 57.5 62.5 66.4 69.2 70.3 70.7 69.9 68.2 66.2 64.1
Kenosha Kenosha-Water Tower ppb 53 51.2 49 48.1 44 40.4 37.2 35.1 33.9 31.8 34.3 39.6 46.5 54.1 60.9 66.5 71.2 70.6 71.8 70.8 68.8 66.3 63.7 61.6
Kewaunee Kewaunee ppb 57.2 55.1 52.6 50.9 49.7 49 48.9 47.4 46.2 46.9 48.6 50.1 52 54.1 56.8 59.8 62.7 65.7 68.3 70.5 70.1 68.6 66.7 64.8
La Crosse La Crosse DOT ppb 49.4 45.8 41.9 38 34.2 31.5 29.4 28.3 28.5 29.8 32.1 34.7 37.8 41.1 44.3 47.4 49.8 51.4 52.5 52.8 52.9 52.3 51.6 50.1
Manitowoc Manitowoc ppb 45 43.1 41.2 40.2 39.5 40 42.3 43.4 44.2 45.2 46.9 48.6 50.7 53.4 56.6 60.1 63.6 66.8 69.1 70.7 71.1 70.8 69.3 67
Marathon Lake Dubay ppb 46.5 45.6 44.7 43.4 41.7 39.8 37.9 36 35.1 35.6 37.2 39 41.2 43.2 45.7 48.2 50.2 51.2 50.9 51.2 51.7 52.7 53.1 53.1
Milwaukee Bayside ppb 46.2 45.8 43.7 41.5 37.2 34 32.1 31.1 30.8 31 32.9 36.4 43.1 49.7 56.3 61.8 66.2 69.7 72.1 72.7 72.1 70.6 68.6 66.8
Milwaukee Milwaukee-16th St. Health Center ppb 34 33.2 33.5 32.1 29.4 26.2 25 25.8 26.8 25.8 26.8 30.6 37.5 45.8 52.9 58.4 63.2 65.9 66.3 63.7 60.1 56.2 52.9 49
Milwaukee Milwaukee-UWM UPark ppb 46.3 45.9 43.9 41.1 37.9 35.3 32.7 31.5 31.1 31.2 32.9 36.5 42 47.8 54.4 60.2 64.5 67.9 70.1 70.8 69.9 68.5 66.4 64.4
Outagamie Appleton ppb 43.3 41.4 41.1 40.1 38.1 35.8 33.3 32.2 32.7 33.8 35.1 37.4 41.5 46.2 51.7 57.3 62.6 66.6 69 69.5 67.9 67.2 66.7 65.2
Ozaukee Grafton ppb 45 42.9 40.9 38.4 35.3 32.7 30.5 29.4 29.5 29.9 31.5 35.5 41.7 48.7 56.5 62.5 66.8 70.1 72.4 72.8 72 70.4 68.3 66.4
Ozaukee Harrington Beach Park ppb 45.6 43.4 41.6 40.5 39.5 39.4 40.3 41.2 41.7 42.3 43.4 45.6 48.6 52.2 56.4 60.7 64.7 67.7 69.5 70.3 70.3 69.6 67.9 66
Racine Racine-Payne & Dolan ppb 48.7 47.9 46.6 45.3 44.2 41.9 39 37.2 36.7 36.1 37.7 41.1 44.7 50.1 56.1 60.9 64.6 67.3 68.7 68.8 68 66.3 64.4 62.7
Rock Beloit-Converse ppb 46.7 42 38 34.4 31.2 29.6 29.5 30.2 32 34.8 37.9 41.5 45.6 50 53.9 57 59 60.3 61.4 61.9 61.6 60.5 58.8 56.8
Sauk Devils Lake ppb 50.3 46.3 42.2 40.4 36.2 32.6 29.5 27.9 27.9 29.4 31.9 33.5 36.4 39.5 42.4 45 47.2 48.8 50.3 51.7 52.7 53.3 53.8 53.6
Sheboygan Sheboygan-Haven ppb 43.1 41.6 40.5 39.5 37.4 35.8 35.8 36.3 36.5 37 38.6 41.2 46.3 52.1 57.4 62.5 66.8 69.6 71.1 71.4 70.4 68.6 66.9 63.6
Sheboygan Sheboygan-Kohler Andrae ppb 45 43.6 41.8 40.9 40.9 41.6 42.7 43.1 42.4 42.6 43.6 44.9 46.6 49.1 52 55.5 59.1 62.5 65.3 66.8 67.5 67.3 66.5 64.6
Vilas Trout Lake ppb 50.5 49.8 49 48.5 47.6 45.8 43.7 41.3 39.1 37.6 36.3 35.4 35.5 36.7 37.3 38.6
Walworth Elkhorn ppb 43.4 40.2 37.4 34.2 31.9 29.6 28.5 29.2 31.4 35.3 40.2 45.3 50 54.8 59.3 62.7 64.6 65.4 65.8 65.1 63.2 61.8 59.9 57.8
Waukesha Waukesha-Cleveland Ave. ppb 45.6 43 40.8 39.2 37.4 33.7 32 31.9 34.5 38.6 43.9 47.3 49.8 55.2 60.3 65.5 69.5 71.2 71.3 70.8 69.9 68.2 66 63