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Noise monitoring program
Active Air Quality Notification
  • An air quality ADVISORY for Unhealthy PM2.5 levels is in effect from 7/24/2025 06:00 to 7/24/2025 18:00 for these counties: Ashland,Barron,Bayfield,Burnett,Chippewa,Douglas,Dunn,Iron,Pepin,Pierce,Polk,Price,Rusk,Sawyer,St. Croix,Vilas,Washburn .

Highest AQI

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Monday, 
County Site AQS ID AQI Level Pollutant Occured AQI
Monroe Ho-Chunk Nation-Tomah 55 081 2001 Moderate PM2.5 02 PM 89
Kenosha Chiwaukee Prairie 55 059 0019 Moderate PM2.5 06 PM 99
Dodge Horicon Wildlife Area 55 027 0001 Moderate PM2.5 08 AM 86
Grant Potosi 55 043 0009 Moderate PM2.5 11 PM 95
Waukesha Waukesha-Cleveland Ave. 55 133 0027 Moderate PM2.5 12 PM 86
Milwaukee Milwaukee-16th St. Health Center 55 079 0010 Moderate PM2.5 11 AM 99
Rock Beloit-Converse 55 105 0030 Good OZONE 05 PM 44
Sheboygan Sheboygan-Kohler Andrae 55 117 0006 Good OZONE 08 PM 28
Milwaukee Milwaukee-College Ave NR 55 079 0056 Moderate PM2.5 02 PM 92
Marathon Lake Dubay 55 073 0012 Moderate PM2.5 06 AM 79
Dane Madison East 55 025 0041 Moderate PM2.5 06 PM 85
Manitowoc Manitowoc 55 071 0007 Good OZONE 05 PM 23
Dane Madison University Ave. Well #6 55 025 0047 Unhealthy for Sensitive Groups PM2.5 08 PM 102
La Crosse La Crosse DOT 55 063 0012 Good OZONE 04 PM 40
Milwaukee Milwaukee-UWM UPark 55 079 0068 Good OZONE 01 AM 34
Racine Racine-Payne & Dolan 55 101 0020 Good OZONE 04 AM 36
Oneida Rhinelander Tower 55 085 0996 Good SO2 12 AM 0
Kenosha Kenosha-Water Tower 55 059 0025 Good OZONE 04 PM 36
Outagamie Appleton 55 087 0009 Moderate PM2.5 04 AM 88
Door Newport Park 55 029 0004 Good OZONE 05 PM 25
Ozaukee Harrington Beach Park 55 089 0009 Moderate PM2.5 02 PM 62
Eau Claire Eau Claire DOT Sign Shop 55 035 0014 Moderate PM2.5 06 PM 98
Milwaukee Bayside 55 079 0085 Good OZONE 12 AM 31
Outagamie Kaukauna 55 087 0015 Good SO2 07 AM 2
Forest Potawatomi 55 041 0007 Moderate PM2.5 04 AM 100
Ashland Bad River Tribal School 55 003 0010 Moderate PM2.5 06 AM 78
Sauk Devils Lake 55 111 0007 Moderate PM2.5 08 PM 99
Brown Green Bay East High 55 009 0005 Moderate PM2.5 01 AM 72
Brown Green Bay UW 55 009 0026 Good OZONE 05 PM 25
Columbia Columbus 55 021 0015 Good OZONE 06 PM 38
Ozaukee Grafton 55 089 0008 Good OZONE 12 AM 29
Fond du Lac Fond Du Lac 55 039 0006 Good OZONE 05 PM 33
Jefferson Jefferson-Laatsch 55 055 0009 Good OZONE 05 PM 41
Jackson Ho-Chunk Nation-Black River Falls 55 053 2002 Moderate PM2.5 05 PM 92
Sheboygan Sheboygan-Haven 55 117 0009 Good OZONE 02 PM 26
Walworth Elkhorn 55 127 0006 Good OZONE 04 PM 43
Kewaunee Kewaunee 55 061 0002 Good OZONE 12 AM 27
Vilas Trout Lake 55 125 0001 Good OZONE 03 PM 27