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Noise monitoring program
Active Air Quality Notification
  • The DNR air map is experiencing technical difficulties; work is ongoing to restore the map to full functionality. Air Quality Advisories will continue to be posted on this site as needed.

Highest Ozone

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Monday, 
County Site Units 8-Hour Hour of Day 1-Hour Hour of Day
Outagamie Appleton ppb 20.7 01 AM 22.3 12 AM
Ashland Bad River Tribal School ppb 30.4 03 PM 33 10 AM
Milwaukee Bayside ppb 30.2 08 AM 41.5 06 AM
Rock Beloit-Converse ppb 33 09 AM 44.7 05 AM
Kenosha Chiwaukee Prairie ppb 41.2 11 AM 49 06 AM
Columbia Columbus ppb 26 12 AM 37.4 05 AM
Sauk Devils Lake ppb 24.8 12 AM 30.1 03 AM
Eau Claire Eau Claire DOT Sign Shop ppb 27 05 PM 28.1 04 PM
Walworth Elkhorn ppb 36.2 09 AM 49.6 05 AM
Fond du Lac Fond Du Lac ppb 22.5 06 PM 29 03 PM
Ozaukee Grafton ppb 26.7 08 AM 38.6 06 AM
Brown Green Bay UW ppb 21.7 06 PM 25.6 05 PM
Ozaukee Harrington Beach Park ppb 23.1 07 AM 33.7 07 AM
Dodge Horicon Wildlife Area ppb 21.7 07 AM 37 05 AM
Jefferson Jefferson-Laatsch ppb 31.9 07 AM 47.2 05 AM
Kenosha Kenosha-Water Tower ppb 38.1 11 AM 47.5 06 AM
Kewaunee Kewaunee ppb 24.7 06 PM 27.9 05 PM
La Crosse La Crosse DOT ppb 31.1 12 AM 31.6 05 PM
Marathon Lake Dubay ppb 26.5 06 PM 30.9 03 PM
Dane Madison East ppb 34.1 12 AM 39.1 05 AM
Manitowoc Manitowoc ppb 21.3 06 PM 26 05 AM
Milwaukee Milwaukee-16th St. Health Center ppb 32.1 09 AM 44 06 AM
Milwaukee Milwaukee-UWM UPark ppb 33.1 08 AM 44.1 06 AM
Door Newport Park ppb 25.4 06 PM 28.2 05 PM
Forest Potawatomi ppb 30.1 06 PM 31.7 05 PM
Racine Racine-Payne & Dolan ppb 36 10 AM 46.8 06 AM
Sheboygan Sheboygan-Haven ppb 23 12 AM 25.6 02 PM
Sheboygan Sheboygan-Kohler Andrae ppb 24.5 12 AM 27.4 07 AM
Vilas Trout Lake ppb 29.4 04 PM 32.8 10 AM
Waukesha Waukesha-Cleveland Ave. ppb 28.2 12 AM 42.2 06 AM