| County | Site | Units | 24-Hour | Hour Of Day | 1 Hour | Hour Of Day |
|---|---|---|---|---|---|---|
| Outagamie | Appleton | µg/m³ | 6.2 | 12 AM | 29.6 | 08 PM |
| Ashland | Bad River Tribal School | µg/m³ | 3.1 | 01 AM | 3.2 | 07 AM |
| Kenosha | Chiwaukee Prairie | µg/m³ | 5.2 | 12 AM | 17.2 | 10 PM |
| Sauk | Devils Lake | µg/m³ | 4.6 | 01 AM | 4.4 | 08 PM |
| Eau Claire | Eau Claire DOT Sign Shop | µg/m³ | 5.2 | 01 AM | 12.4 | 08 PM |
| Brown | Green Bay East High | µg/m³ | 4.4 | 12 AM | 11.7 | 11 PM |
| Ozaukee | Harrington Beach Park | µg/m³ | 4 | 01 AM | 7.7 | 12 AM |
| Dodge | Horicon Wildlife Area | µg/m³ | 4.3 | 01 AM | 9.2 | 11 PM |
| Marathon | Lake Dubay | µg/m³ | 4 | 01 AM | 5.5 | 12 AM |
| Dane | Madison East | µg/m³ | 7.5 | 12 AM | 24.7 | 09 PM |
| Dane | Madison University Ave. Well #6 | µg/m³ | 6.1 | 12 AM | 18 | 07 PM |
| Milwaukee | Milwaukee-16th St. Health Center | µg/m³ | 8.4 | 12 AM | 29 | 09 PM |
| Milwaukee | Milwaukee-College Ave NR | µg/m³ | 7.3 | 12 AM | 22.2 | 10 PM |
| Forest | Potawatomi | µg/m³ | 3 | 01 AM | 3.2 | 12 AM |
| Grant | Potosi | µg/m³ | 7.3 | 09 AM | 17.2 | 02 AM |
| Waukesha | Waukesha-Cleveland Ave. | µg/m³ | 10.1 | 12 AM | 37.7 | 11 PM |