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Noise monitoring program
Active Air Quality Notification
  • An air quality ADVISORY for Unhealthy PM2.5 levels is in effect from 8/2/2025 12:00 to 8/3/2025 12:00 for these counties: Adams,Ashland,Barron,Bayfield,Brown,Buffalo,Burnett,Calumet,Chippewa,Clark,Columbia,Crawford,Dane,Dodge,Door,Douglas,Dunn,Eau Claire,Florence,Fond du Lac,Forest,Grant,Green,Iowa,Green Lake,Iron,Jackson,Jefferson,Juneau,Kenosha,Kewaunee,La Crosse,Langlade,Lafayette,Lincoln,Manitowoc,Marathon,Marinette,Marquette,Menominee,Milwaukee,Monroe,Oconto,Oneida,Outagamie,Ozaukee,Pepin,Pierce,Polk,Portage,Price,Racine,Richland,Rock,Rusk,Sawyer,Sauk,Shawano,Sheboygan,St. Croix,Taylor,Trempealeau,Vernon,Vilas,Walworth,Washburn,Washington,Waukesha,Waupaca,Waushara,Winnebago,Wood .

8-HR Ozone Summary

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Sunday, 
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 40.2 38.6 38.6 38.7 39 39.5 40.4 42.3 44 45.3 45.2 45.3 45.6 46.2 47 47.3 47.3 47 46.1 44 41.9 40.4 39.4 38.4
Brown Green Bay UW ppb 48.6 47.6 46.8 46.4 45.9 45.4 44.9 44.8 45.2 45.8 46.5 47.3 48.2 49.3 50.3 51.1 51.4 51.6 51.2 50.1 48.7 46.8 45.1 43.5
Columbia Columbus ppb 43.8 40.7 38.4 36.8 36.1 36.1 36.5 37.4 38.7 40.5 42.2 43.5 44.2 44.8 45.2 45.5 45.9 45.3 45 44.4 43.6 42.8 42 40.9
Dane Madison East ppb 48.9 48 47.2 46.5 45.9 45.5 45.4 45.2 44.8 44.3 43.9 43.7 43.7 43.6 43.9 44.4 44.9 45.3 45.3 44.8 44.1 43.6 42.8 41.3
Dodge Horicon Wildlife Area ppb 49.1 46.9 45.2 43.8 42.9 42.4 42.3 42.7 43.5 44.8 46.2 47.7 48.9 49.9 50.6 49.8 48.9 48.5 47.8 46.8 45.5 44.2 43.4 43.8
Door Newport Park ppb 56.5 55.9 55.3 55 54.4 53.9 53.5 53.1 52.7 52.6 52.5 52.5 52.9 53.7 54.6 55.7 56.7 57.5 57.9 57.9 57.5 56.6 55.2 53.6
Eau Claire Eau Claire DOT Sign Shop ppb 44.3 43.9 43.8 43.8 43.8 43.8 43.5 43.1 42.8 42.5 42.3 41.9 41.7 41.7 42 42.2 42.2 42.1 41.8 41.4 40.8 40.1 39.4 38.7
Fond du Lac Fond Du Lac ppb 45.1 43.6 42.5 41.8 41.5 41.4 41.6 42.1 42.8 43.9 45.2 46.5 47.5 48.4 48.9 47.7 46.9 46.3 45.4 44.4 42.8 41.2 39.9 40.1
Forest Potawatomi ppb 49.7 49.2 48.6 47.6 46.4 45.2 44.4 44.1 44.2 44.2 44.5 45.4 46.5 47.9 49.3 50.6 51.6 52.2 52.2 51.5 50 48.5 46.8 45
Jefferson Jefferson-Laatsch ppb 43.5 41.4 40.1 39.5 39.4 39.6 40.1 41.4 42.8 43.9 44.3 44.7 45 45.5 45.9 46 46.1 46.1 45.9 45.5 45.1 44.3 43.6 42.5
Kenosha Chiwaukee Prairie ppb 52.6 51 49.2 47.8 46.7 45.3 44.1 43.4 43.2 43.6 44.3 45.2 46.4 47.9 49.1 50.3 51.5 52.4 53.1 53.4 53.3 53.1 52.8 52.5
Kenosha Kenosha-Water Tower ppb 50.6 48.5 46.6 45.6 44.5 43.3 42 41.5 42.2 43.3 44.4 44.9 46 47.4 48.8 50.1 50.6 51 51.4 51.7 51.8 51.6 51.3 51.2
Kewaunee Kewaunee ppb 52.3 51.4 50.5 50.3 50.1 50.1 50.1 50.2 50 49.8 50.1 50.2 50.4 51 51.7 52.6 53.6 54.3 54.9 55.4 55.4 55 54.5 54
La Crosse La Crosse DOT ppb 49 48.4 47.9 47.4 46.9 46.5 45.8 45 44.3 43.4 42.6 41.7 39.7 39 38.9 38.9 39.1 39.4 39 38.1 37.7 35.8 33.5 31.3
Manitowoc Manitowoc ppb 52.3 52 51.8 51.2 50.8 50.1 49.1 48.2 47.5 46.9 46.6 46.7 46.9 47.5 48.4 49.3 50.1 50.9 51.3 51.4 51.4 50.9 50.3 50
Marathon Lake Dubay ppb 52.1 51.7 50.9 49.9 49 47.8 46.5 45.6 45 44.8 44.9 45.3 45.7 46.4 47.2 48.1 48.6 48.7 48.4 47.7 46.8 45.7 44.5 42.5
Milwaukee Bayside ppb 50.5 50 49 48.6 47.9 46.5 45.3 44.6 44.7 44 44.1 44.8 45.7 47 48.2 49.6 50.8 52.2 53.2 53.9 54.2 54.2 54.2 53.7
Milwaukee Milwaukee-16th St. Health Center ppb 38.6 37.7 36.8 36.4 35.9 35.2 35.1 34.9 35.3 35.8 36.9 37.1 37.3 37.7 38.1 38.3 38.7 38.4 38.1 37.2 37.2 37.3 37.3 37.4
Milwaukee Milwaukee-UWM UPark ppb 46 45 44.1 43 41.7 41 40.6 40.6 40.8 40.8 41 41.7 42.9 44.1 45.1 46.2 47 48 48.8 49.4 49.7 49.7 49.9 49.6
Outagamie Appleton ppb 47.6 46.3 45.4 45 44.8 44.9 45.2 45.7 46.3 47.1 48 49 49.6 49.7 49.4 49.1 48.9 48.3 47 45.2 42.9 41.2 39.8 37.8
Ozaukee Grafton ppb 50.5 50.1 49.4 48.3 47 45.9 44.7 43.9 43.6 43.2 43.1 43.8 45.1 46.4 47.8 49.1 50.2 51.4 52 52.4 52.5 52.2 51.8 51.2
Ozaukee Harrington Beach Park ppb 52.6 52.8 52.4 51.4 49.8 48.5 47.6 47 46.5 45.7 45.7 46.3 47.6 49 50.3 51.4 51.9 52.9 53.5 54 53.9 53.6 53.1 52.6
Racine Racine-Payne & Dolan ppb 52 50.4 48.7 47.3 46.4 45.4 44.3 43.2 42.8 43.2 43.9 44.8 45.7 46.9 48.1 49.3 50.5 51.4 52.1 52.6 52.6 52.5 52.4 52.2
Rock Beloit-Converse ppb 48.9 47.6 47 46.7 46.1 45.4 44.7 44.2 43.7 43.5 43.3 43.1 43.5 44 44.5 44.9 45.3 45.7 45.6 45.2 44.7 43.6 42.4 41
Sauk Devils Lake ppb 51 50 49.2 48.5 47.9 47.2 46.3 45.3 44.6 44 43.5 43.5 43.5 43.6 43.6 43.9 44 44 43.8 42.9 42.1 41.4 40.8 39.4
Sheboygan Sheboygan-Haven ppb 48.4 48.1 47.4 46.2 44.8 44.3 43.9 44 43.8 43.5 43.9 45 46.4 47.5 48.6 49.5 50.1 51 51.5 51 49.7 48.3 47.3 46.5
Sheboygan Sheboygan-Kohler Andrae ppb 53.7 54.2 54.6 54.5 53.5 52.2 51 49.9 48.9 48.1 47.7 47.7 48.4 49.6 50.8 51.8 52.7 53.7 54.3 54.7 53.8 53.1 52.8 52.4
Vilas Trout Lake ppb 43 41.5 40.7 39.6 38.5 37.9 38.2 38.5 39.1 40.1 40.9 42.3 44.1 46 47.7 49.4 50.4 50.5 49.2 47.6 45.6 42.8 41.1 39.5
Walworth Elkhorn ppb 40.1 37.8 36.9 36.8 36.8 37.4 38.4 40 42.1 43.6 44.5 45.1 46.1 47.1 47.8 48.3 48.4 48.4 48 47 45.7 44.5 43.3 42.2
Waukesha Waukesha-Cleveland Ave. ppb 46.9 45.2 43.7 42.7 41.5 40.8 40.4 40.8 41.6 42.8 44.4 45.8 47.4 48.6 49.6 50.3 50.7 50.7 50 48.8 48.2 48 47.7 47.4