| County | Site | Units | 24-Hour | Hour Of Day | 1 Hour | Hour Of Day |
|---|---|---|---|---|---|---|
| Outagamie | Appleton | µg/m³ | 22.4 | 06 AM | 26.6 | 03 AM |
| Ashland | Bad River Tribal School | µg/m³ | 17 | 12 AM | 21.5 | 11 AM |
| Kenosha | Chiwaukee Prairie | µg/m³ | 18 | 07 AM | 19.9 | 05 AM |
| Sauk | Devils Lake | µg/m³ | 17.8 | 09 AM | 21.9 | 05 AM |
| Eau Claire | Eau Claire DOT Sign Shop | µg/m³ | 21.1 | 05 PM | 23.2 | 10 AM |
| Brown | Green Bay East High | µg/m³ | 21.1 | 04 AM | 21.7 | 01 AM |
| Ozaukee | Harrington Beach Park | µg/m³ | 16 | 01 AM | 16.4 | 01 AM |
| Dodge | Horicon Wildlife Area | µg/m³ | 18.7 | 05 AM | 23.8 | 02 AM |
| Marathon | Lake Dubay | µg/m³ | ||||
| Dane | Madison East | µg/m³ | 17.5 | 07 AM | 22 | 05 AM |
| Dane | Madison University Ave. Well #6 | µg/m³ | 22.2 | 09 AM | 24.9 | 02 AM |
| Milwaukee | Milwaukee-16th St. Health Center | µg/m³ | 19.8 | 03 AM | 19.5 | 01 AM |
| Milwaukee | Milwaukee-College Ave NR | µg/m³ | 17.5 | 07 AM | 17.8 | 01 AM |
| Forest | Potawatomi | µg/m³ | 19.9 | 08 AM | 22.1 | 05 AM |
| Grant | Potosi | µg/m³ | 20.9 | 03 PM | 24.3 | 01 PM |
| Waukesha | Waukesha-Cleveland Ave. | µg/m³ | 19.9 | 05 AM | 22.9 | 01 AM |