| County | Site | Units | 24-Hour | Hour Of Day | 1 Hour | Hour Of Day |
|---|---|---|---|---|---|---|
| Outagamie | Appleton | µg/m³ | 9.1 | 11 PM | 14.2 | 05 PM |
| Ashland | Bad River Tribal School | µg/m³ | 10.2 | 01 PM | 15.9 | 09 AM |
| Kenosha | Chiwaukee Prairie | µg/m³ | 8.7 | 12 AM | 11.3 | 09 PM |
| Sauk | Devils Lake | µg/m³ | 9.6 | 11 PM | 14.1 | 08 PM |
| Eau Claire | Eau Claire DOT Sign Shop | µg/m³ | 10.7 | 04 PM | 17.2 | 12 PM |
| Brown | Green Bay East High | µg/m³ | 8.9 | 10 PM | 14.8 | 06 PM |
| Ozaukee | Harrington Beach Park | µg/m³ | 7.4 | 11 PM | 11.8 | 08 PM |
| Dodge | Horicon Wildlife Area | µg/m³ | 8.4 | 12 AM | 12 | 08 PM |
| Marathon | Lake Dubay | µg/m³ | 8.6 | 12 AM | 15 | 02 PM |
| Dane | Madison East | µg/m³ | 8.1 | 12 AM | 12 | 08 PM |
| Dane | Madison University Ave. Well #6 | µg/m³ | 9.3 | 12 AM | 14.3 | 08 PM |
| Milwaukee | Milwaukee-16th St. Health Center | µg/m³ | 10.2 | 12 AM | 18.5 | 06 PM |
| Milwaukee | Milwaukee-College Ave NR | µg/m³ | 9.6 | 11 PM | 13.3 | 08 PM |
| Forest | Potawatomi | µg/m³ | 8.3 | 11 PM | 13.9 | 12 PM |
| Grant | Potosi | µg/m³ | 13.3 | 12 AM | 20.1 | 07 PM |
| Waukesha | Waukesha-Cleveland Ave. | µg/m³ | 9.6 | 11 PM | 13.7 | 09 PM |