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Noise monitoring program
Active Air Quality Notification
  • An air quality ADVISORY for Unhealthy PM2.5 levels is in effect from 7/31/2025 12:00 to 8/1/2025 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,Green Lake,Iowa,Iron,Jackson,Jefferson,Juneau,Kenosha,Kewaunee,La Crosse,Lafayette,Langlade,Lincoln,Manitowoc,Marathon,Marinette,Marquette,Menominee,Milwaukee,Monroe,Oconto,Oneida,Outagamie,Ozaukee,Pepin,Pierce,Polk,Portage,Price,Racine,Richland,Rock,Rusk,Sauk,Sawyer,Shawano,Sheboygan,St. Croix,Taylor,Trempealeau,Vernon,Vilas,Walworth,Washburn,Washington,Waukesha,Waupaca,Waushara,Winnebago,Wood .

Highest AQI

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Wednesday, 
County Site AQS ID AQI Level Pollutant Occured AQI
Kenosha Chiwaukee Prairie 55 059 0019 Good OZONE 10 PM 47
Dodge Horicon Wildlife Area 55 027 0001 Moderate OZONE 07 PM 65
Grant Potosi 55 043 0009 Good PM2.5 10 PM 27
Waukesha Waukesha-Cleveland Ave. 55 133 0027 Moderate OZONE 07 PM 67
Milwaukee Milwaukee-16th St. Health Center 55 079 0010 Good OZONE 03 PM 43
Rock Beloit-Converse 55 105 0030 Moderate OZONE 06 PM 65
Sheboygan Sheboygan-Kohler Andrae 55 117 0006 Moderate OZONE 04 PM 57
Milwaukee Milwaukee-College Ave NR 55 079 0056 Good PM2.5 10 PM 26
Marathon Lake Dubay 55 073 0012 Good OZONE 07 PM 40
Dane Madison East 55 025 0041 Moderate OZONE 08 PM 67
Manitowoc Manitowoc 55 071 0007 Good OZONE 07 PM 49
Dane Madison University Ave. Well #6 55 025 0047 Good PM2.5 09 PM 24
La Crosse La Crosse DOT 55 063 0012 Good OZONE 06 PM 46
Milwaukee Milwaukee-UWM UPark 55 079 0068 Good OZONE 09 PM 48
Racine Racine-Payne & Dolan 55 101 0020 Good OZONE 10 PM 49
Oneida Rhinelander Tower 55 085 0996 Good SO2 08 AM 1
Kenosha Kenosha-Water Tower 55 059 0025 Moderate OZONE 08 PM 63
Outagamie Appleton 55 087 0009 Good PM2.5 11 AM 50
Door Newport Park 55 029 0004 Good OZONE 09 PM 43
Ozaukee Harrington Beach Park 55 089 0009 Moderate OZONE 05 PM 53
Eau Claire Eau Claire DOT Sign Shop 55 035 0014 Good OZONE 06 PM 49
Milwaukee Bayside 55 079 0085 Good OZONE 05 PM 47
Outagamie Kaukauna 55 087 0015 Good SO2 02 PM 25
Forest Potawatomi 55 041 0007 Good PM2.5 09 AM 28
Ashland Bad River Tribal School 55 003 0010 Good OZONE 08 PM 25
Sauk Devils Lake 55 111 0007 Good OZONE 06 PM 48
Brown Green Bay East High 55 009 0005 Good PM2.5 12 PM 40
Brown Green Bay UW 55 009 0026 Good OZONE 07 PM 49
Columbia Columbus 55 021 0015 Moderate OZONE 06 PM 58
Ozaukee Grafton 55 089 0008 Moderate OZONE 05 PM 53
Fond du Lac Fond Du Lac 55 039 0006 Good OZONE 06 PM 49
Jefferson Jefferson-Laatsch 55 055 0009 Moderate OZONE 05 PM 57
Sheboygan Sheboygan-Haven 55 117 0009 Good OZONE 07 PM 49
Walworth Elkhorn 55 127 0006 Moderate OZONE 05 PM 57
Kewaunee Kewaunee 55 061 0002 Moderate OZONE 08 PM 65
Vilas Trout Lake 55 125 0001 Good OZONE 11 PM 35