| County | Site | Units | 24-Hour | Hour Of Day | 1 Hour | Hour Of Day |
|---|---|---|---|---|---|---|
| Outagamie | Appleton | µg/m³ | 22.4 | 12 AM | 38.4 | 09 AM |
| Ashland | Bad River Tribal School | µg/m³ | 17.7 | 05 PM | 25.5 | 10 AM |
| Kenosha | Chiwaukee Prairie | µg/m³ | 13.8 | 12 AM | 22.5 | 02 PM |
| Sauk | Devils Lake | µg/m³ | 19.5 | 12 AM | 28.6 | 10 AM |
| Eau Claire | Eau Claire DOT Sign Shop | µg/m³ | 18.7 | 12 AM | 30.8 | 11 PM |
| Brown | Green Bay East High | µg/m³ | 20.6 | 10 PM | 33.6 | 08 AM |
| Ozaukee | Harrington Beach Park | µg/m³ | 14.9 | 12 AM | 27.7 | 11 AM |
| Dodge | Horicon Wildlife Area | µg/m³ | 17.6 | 12 AM | 27.1 | 09 AM |
| Marathon | Lake Dubay | µg/m³ | ||||
| Dane | Madison East | µg/m³ | 17.6 | 12 AM | 27.9 | 12 PM |
| Dane | Madison University Ave. Well #6 | µg/m³ | 22 | 12 AM | 34 | 12 PM |
| Milwaukee | Milwaukee-16th St. Health Center | µg/m³ | 17.1 | 12 AM | 25.3 | 12 PM |
| Milwaukee | Milwaukee-College Ave NR | µg/m³ | 15 | 12 AM | 26 | 08 AM |
| Forest | Potawatomi | µg/m³ | 24.1 | 10 PM | 44 | 07 AM |
| Grant | Potosi | µg/m³ | 13.4 | 12 AM | 32.2 | 10 PM |
| Waukesha | Waukesha-Cleveland Ave. | µg/m³ | 15.5 | 12 AM | 24.8 | 12 PM |