| County | Site | Units | 24-Hour | Hour Of Day | 1 Hour | Hour Of Day |
|---|---|---|---|---|---|---|
| Outagamie | Appleton | µg/m³ | 4.2 | 12 AM | 6.9 | 11 PM |
| Ashland | Bad River Tribal School | µg/m³ | 3.8 | 12 AM | 4.5 | 10 PM |
| Kenosha | Chiwaukee Prairie | µg/m³ | 4.2 | 11 PM | 7.4 | 01 PM |
| Sauk | Devils Lake | µg/m³ | 4 | 12 AM | 6.6 | 12 AM |
| Eau Claire | Eau Claire DOT Sign Shop | µg/m³ | 4.9 | 12 AM | 6.8 | 08 PM |
| Brown | Green Bay East High | µg/m³ | 4.2 | 12 AM | 9.1 | 11 PM |
| Ozaukee | Harrington Beach Park | µg/m³ | 4.2 | 11 PM | 7.9 | 03 PM |
| Dodge | Horicon Wildlife Area | µg/m³ | 4 | 12 AM | 6.6 | 09 PM |
| Marathon | Lake Dubay | µg/m³ | 5 | 11 PM | 8.4 | 07 PM |
| Dane | Madison East | µg/m³ | 4.3 | 12 AM | 7.5 | 10 PM |
| Dane | Madison University Ave. Well #6 | µg/m³ | 5.3 | 12 AM | 11.7 | 12 AM |
| Milwaukee | Milwaukee-16th St. Health Center | µg/m³ | 7.9 | 11 PM | 11.1 | 05 AM |
| Milwaukee | Milwaukee-College Ave NR | µg/m³ | 5.5 | 11 PM | 9.1 | 06 PM |
| Forest | Potawatomi | µg/m³ | 3.9 | 12 AM | 4.8 | 05 PM |
| Grant | Potosi | µg/m³ | 4.7 | 12 AM | 6 | 12 AM |
| Waukesha | Waukesha-Cleveland Ave. | µg/m³ | 6.3 | 10 PM | 10.5 | 07 AM |