| County | Site | Units | 24-Hour | Hour Of Day | 1 Hour | Hour Of Day |
|---|---|---|---|---|---|---|
| Outagamie | Appleton | µg/m³ | 5.9 | 01 AM | 4.8 | 08 PM |
| Ashland | Bad River Tribal School | µg/m³ | 2.5 | 09 PM | 3.7 | 01 PM |
| Kenosha | Chiwaukee Prairie | µg/m³ | 7.8 | 09 AM | 8.2 | 09 AM |
| Sauk | Devils Lake | µg/m³ | 8.1 | 03 AM | 10 | 02 AM |
| Eau Claire | Eau Claire DOT Sign Shop | µg/m³ | 7.6 | 01 AM | 5.4 | 08 PM |
| Brown | Green Bay East High | µg/m³ | 4.7 | 01 AM | 4.2 | 12 AM |
| Ozaukee | Harrington Beach Park | µg/m³ | 7.5 | 05 AM | 9.7 | 04 AM |
| Dodge | Horicon Wildlife Area | µg/m³ | 7.4 | 04 AM | 9.7 | 03 AM |
| Marathon | Lake Dubay | µg/m³ | ||||
| Dane | Madison East | µg/m³ | 6.9 | 03 AM | 7.4 | 01 AM |
| Dane | Madison University Ave. Well #6 | µg/m³ | 7.8 | 01 AM | 7.7 | 03 AM |
| Milwaukee | Milwaukee-16th St. Health Center | µg/m³ | 9.5 | 07 AM | 11.8 | 07 AM |
| Milwaukee | Milwaukee-College Ave NR | µg/m³ | 9.2 | 08 AM | 12.7 | 07 AM |
| Forest | Potawatomi | µg/m³ | 2.3 | 05 PM | 3.1 | 10 AM |
| Grant | Potosi | µg/m³ | 8 | 01 AM | 7 | 01 AM |
| Waukesha | Waukesha-Cleveland Ave. | µg/m³ | 8.6 | 06 AM | 11.2 | 03 AM |