| County | Site | Units | 24-Hour | Hour Of Day | 1 Hour | Hour Of Day |
|---|---|---|---|---|---|---|
| Outagamie | Appleton | µg/m³ | 14.7 | 12 AM | 22 | 10 PM |
| Ashland | Bad River Tribal School | µg/m³ | 7.1 | 01 AM | 7.8 | 10 PM |
| Kenosha | Chiwaukee Prairie | µg/m³ | 17.6 | 12 AM | 23.5 | 05 PM |
| Sauk | Devils Lake | µg/m³ | 11.8 | 08 PM | 17.7 | 01 PM |
| Eau Claire | Eau Claire DOT Sign Shop | µg/m³ | 17.9 | 09 PM | 25.6 | 02 AM |
| Brown | Green Bay East High | µg/m³ | 13.4 | 08 PM | 18.1 | 02 AM |
| Ozaukee | Harrington Beach Park | µg/m³ | 14.6 | 12 AM | 23.2 | 02 PM |
| Dodge | Horicon Wildlife Area | µg/m³ | 12.5 | 01 AM | 18.9 | 12 AM |
| Marathon | Lake Dubay | µg/m³ | ||||
| Dane | Madison East | µg/m³ | 12.2 | 01 AM | 15.6 | 08 PM |
| Dane | Madison University Ave. Well #6 | µg/m³ | 12.2 | 12 AM | 18.9 | 12 AM |
| Milwaukee | Milwaukee-16th St. Health Center | µg/m³ | 16.5 | 11 PM | 22.9 | 03 PM |
| Milwaukee | Milwaukee-College Ave NR | µg/m³ | 14.9 | 01 AM | 18.8 | 04 PM |
| Forest | Potawatomi | µg/m³ | 13.2 | 12 AM | 19.3 | 10 AM |
| Grant | Potosi | µg/m³ | 14.1 | 03 PM | 18.7 | 11 AM |
| Waukesha | Waukesha-Cleveland Ave. | µg/m³ | 15.2 | 12 AM | 21 | 11 PM |