| County | Site | Units | 24-Hour | Hour Of Day | 1 Hour | Hour Of Day |
|---|---|---|---|---|---|---|
| Outagamie | Appleton | µg/m³ | 12.6 | 12 AM | 17.6 | 08 PM |
| Ashland | Bad River Tribal School | µg/m³ | 7.6 | 12 AM | 9.1 | 12 PM |
| Kenosha | Chiwaukee Prairie | µg/m³ | 11.4 | 11 PM | 16 | 06 AM |
| Sauk | Devils Lake | µg/m³ | 11.3 | 12 AM | 18 | 04 PM |
| Eau Claire | Eau Claire DOT Sign Shop | µg/m³ | 11.8 | 12 AM | 17.3 | 09 PM |
| Brown | Green Bay East High | µg/m³ | 12.2 | 12 AM | 16.8 | 11 PM |
| Ozaukee | Harrington Beach Park | µg/m³ | 12.2 | 12 AM | 16.8 | 09 AM |
| Dodge | Horicon Wildlife Area | µg/m³ | 11 | 12 AM | 15.1 | 04 PM |
| Marathon | Lake Dubay | µg/m³ | ||||
| Dane | Madison East | µg/m³ | 10.2 | 12 AM | 16.1 | 02 PM |
| Dane | Madison University Ave. Well #6 | µg/m³ | 11.1 | 12 AM | 19.9 | 02 PM |
| Milwaukee | Milwaukee-16th St. Health Center | µg/m³ | 15.5 | 10 PM | 22.7 | 06 AM |
| Milwaukee | Milwaukee-College Ave NR | µg/m³ | 14.7 | 11 PM | 21.9 | 06 AM |
| Forest | Potawatomi | µg/m³ | 9.9 | 12 AM | 16.2 | 12 AM |
| Grant | Potosi | µg/m³ | 12.8 | 12 AM | 18.5 | 01 PM |
| Waukesha | Waukesha-Cleveland Ave. | µg/m³ | 13.6 | 12 AM | 20.4 | 10 PM |