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Noise monitoring program
Active Air Quality Notification
  • An air quality ADVISORY for Unhealthy for Sensitive Groups PM2.5 levels is in effect from 8/5/2025 12:00 to 8/6/2025 12:00 for these counties: Ashland,Bayfield,Brown,Calumet,Dodge,Door,Douglas,Florence,Fond du Lac,Forest,Green Lake,Iron,Kenosha,Kewaunee,Langlade,Lincoln,Manitowoc,Marathon,Marinette,Marquette,Menominee,Milwaukee,Oconto,Oneida,Outagamie,Ozaukee,Portage,Racine,Shawano,Sheboygan,Vilas,Washington,Waukesha,Waupaca,Waushara,Winnebago .

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 29 28.9 28.8 28.8 28.8 28.8 28.8 28.4 28 27.9 27.9 28.1 28.3 28.7 29.3 29.9 30.2 30.3 30.3 30.2 30 29.6 29.3 29.2
Dodge Horicon Wildlife Area ppb 32.5 32.4 32.2 32.1 32.1 32.2 32 31.7 31.5 31.3 31.2 31.2 31.3 31.6 32 32.4 32.7 32.9 33 33.1 33 32.9 32.8 32.7
Forest Potawatomi ppb 31.4 31.2 31 30.8 30.6 30.4 30.4 30.4 30.4 30.5 30.5 30.5 30.6 30.8 31 31.4 31.7 32.1 32.4 32.6 32.7 32.7 32.6 32.5