Highest Ozone
Filter by Site:
Filter by County:
.png)
| County | Site | Units | 8-Hour | Hour of Day | 1-Hour | Hour of Day |
|---|---|---|---|---|---|---|
| Outagamie | Appleton | ppb | 41.6 | 07 AM | 47.7 | 06 AM |
| Ashland | Bad River Tribal School | ppb | 50.6 | 12 AM | 45.5 | 12 AM |
| Milwaukee | Bayside | ppb | 38.9 | 12 AM | 37.7 | 04 AM |
| Rock | Beloit-Converse | ppb | 39.3 | 12 AM | 41.3 | 03 AM |
| Kenosha | Chiwaukee Prairie | ppb | 44.1 | 12 AM | 40 | 06 AM |
| Columbia | Columbus | ppb | 35.2 | 07 AM | 37 | 07 AM |
| Sauk | Devils Lake | ppb | 36.7 | 07 AM | 43.3 | 07 AM |
| Eau Claire | Eau Claire DOT Sign Shop | ppb | 46.1 | 04 AM | 50.6 | 03 AM |
| Walworth | Elkhorn | ppb | 41.2 | 12 AM | 40.4 | 04 AM |
| Fond du Lac | Fond Du Lac | ppb | 34.7 | 12 AM | 43.2 | 07 AM |
| Ozaukee | Grafton | ppb | 39.6 | 12 AM | 36.9 | 03 AM |
| Brown | Green Bay UW | ppb | 42.3 | 07 AM | 47.2 | 06 AM |
| Ozaukee | Harrington Beach Park | ppb | 36.9 | 12 AM | 36.8 | 03 AM |
| Dodge | Horicon Wildlife Area | ppb | 35.2 | 12 AM | 38.5 | 07 AM |
| Jefferson | Jefferson-Laatsch | ppb | 36.8 | 02 AM | 38.9 | 04 AM |
| Kenosha | Kenosha-Water Tower | ppb | 41.8 | 12 AM | 41 | 05 AM |
| Kewaunee | Kewaunee | ppb | 43.7 | 07 AM | 48.1 | 07 AM |
| La Crosse | La Crosse DOT | ppb | 38.5 | 07 AM | 46.2 | 05 AM |
| Marathon | Lake Dubay | ppb | 44.4 | 07 AM | 48.3 | 04 AM |
| Dane | Madison East | ppb | 35.1 | 07 AM | 37.3 | 04 AM |
| Manitowoc | Manitowoc | ppb | 38 | 07 AM | 45.5 | 07 AM |
| Milwaukee | Milwaukee-UWM UPark | ppb | 40 | 12 AM | 40 | 04 AM |
| Door | Newport Park | ppb | 44.3 | 07 AM | 48.8 | 06 AM |
| Forest | Potawatomi | ppb | 45.3 | 12 AM | 45.2 | 12 AM |
| Racine | Racine-Payne & Dolan | ppb | 42.9 | 12 AM | 41.4 | 04 AM |
| Sheboygan | Sheboygan-Haven | ppb | 35.7 | 12 AM | 44.6 | 07 AM |
| Sheboygan | Sheboygan-Kohler Andrae | ppb | 35.9 | 12 AM | 39.6 | 07 AM |
| Vilas | Trout Lake | ppb | 49.8 | 01 AM | 51.3 | 01 AM |
| Waukesha | Waukesha-Cleveland Ave. | ppb | 36.9 | 02 AM | 38.8 | 04 AM |