-
Noise monitoring program
Active Air Quality Notification
  • An air quality ADVISORY for Unhealthy for Sensitive Groups OZONE levels is in effect from 7/5/2025 08:00 to 7/5/2025 23:00 for these counties: Kenosha,Manitowoc,Milwaukee,Ozaukee,Racine,Sheboygan .

  • Increases in firework displays over the holiday weekend may lead to short-lived, local spikes in PM2.5 concentrations. Visit https://dnr.wisconsin.gov/topic/AirQuality/Fireworks.html to learn more about air quality and health effects of fireworks.

Highest AQI

Filter by County:
Filter by Site:
Friday, 
County Site AQS ID AQI Level Pollutant Occured AQI
Kenosha Chiwaukee Prairie 55 059 0019 Good OZONE 12 AM 45
Dodge Horicon Wildlife Area 55 027 0001 Good OZONE 04 PM 44
Grant Potosi 55 043 0009 Good PM2.5 01 AM 49
Waukesha Waukesha-Cleveland Ave. 55 133 0027 Moderate PM2.5 06 AM 52
Milwaukee Milwaukee-16th St. Health Center 55 079 0010 Good PM2.5 12 AM 45
Sheboygan Sheboygan-Kohler Andrae 55 117 0006 Good OZONE 07 PM 47
Milwaukee Milwaukee-College Ave NR 55 079 0056 Good PM2.5 12 AM 45
Marathon Lake Dubay 55 073 0012 Good OZONE 06 PM 50
Dane Madison East 55 025 0041 Good PM2.5 12 AM 44
Manitowoc Manitowoc 55 071 0007 Good OZONE 04 PM 45
Dane Madison University Ave. Well #6 55 025 0047 Good PM2.5 12 AM 48
Milwaukee Milwaukee-UWM UPark 55 079 0068 Good OZONE 05 PM 45
Racine Racine-Payne & Dolan 55 101 0020 Good OZONE 08 PM 44
Oneida Rhinelander Tower 55 085 0996 Good SO2 12 AM 1
Kenosha Kenosha-Water Tower 55 059 0025 Good OZONE 03 PM 43
Outagamie Appleton 55 087 0009 Good OZONE 04 PM 45
Door Newport Park 55 029 0004 Good OZONE 02 PM 45
Ozaukee Harrington Beach Park 55 089 0009 Good OZONE 04 PM 45
Eau Claire Eau Claire DOT Sign Shop 55 035 0014 Moderate OZONE 07 PM 55
Milwaukee Bayside 55 079 0085 Good OZONE 08 PM 43
Outagamie Kaukauna 55 087 0015 Good SO2 12 AM 0
Forest Potawatomi 55 041 0007 Good OZONE 09 PM 48
Ashland Bad River Tribal School 55 003 0010 Good OZONE 05 PM 50
Sauk Devils Lake 55 111 0007 Good PM2.5 12 AM 38
Brown Green Bay East High 55 009 0005 Good PM2.5 12 AM 34
Ozaukee Grafton 55 089 0008 Good OZONE 05 PM 45
Jefferson Jefferson-Laatsch 55 055 0009 Good OZONE 05 PM 44
Sheboygan Sheboygan-Haven 55 117 0009 Good OZONE 04 PM 44
Walworth Elkhorn 55 127 0006 Good OZONE 05 PM 43
Kewaunee Kewaunee 55 061 0002 Good OZONE 05 PM 47
Vilas Trout Lake 55 125 0001 Good OZONE 05 PM 48