| County | Site | Units | 24-Hour | Hour Of Day | 1 Hour | Hour Of Day |
|---|---|---|---|---|---|---|
| Outagamie | Appleton | µg/m³ | 8.8 | 06 PM | 12.6 | 06 PM |
| Ashland | Bad River | µg/m³ | 18.3 | 11 AM | 19.9 | 01 AM |
| Kenosha | Chiwaukee Prairie | µg/m³ | 6 | 09 PM | 8.2 | 03 PM |
| Sauk | Devil's Lake | µg/m³ | 6 | 01 PM | 7.1 | 11 AM |
| Eau Claire | Eau Claire | µg/m³ | 10 | 08 AM | 11.1 | 03 AM |
| Brown | Green Bay - East High | µg/m³ | 10.3 | 05 PM | 14.1 | 10 AM |
| Ozaukee | Harrington Beach | µg/m³ | 5.8 | 12 AM | 8.4 | 07 PM |
| Dodge | Horicon | µg/m³ | 7.3 | 11 PM | 9.6 | 07 AM |
| Marathon | Lake DuBay | µg/m³ | ||||
| Dane | Madison - East | µg/m³ | 7 | 10 AM | 7.9 | 08 AM |
| Dane | Madison - Univ. Ave | µg/m³ | 8.7 | 12 PM | 11.6 | 08 AM |
| Milwaukee | Milwaukee-16th St. | µg/m³ | 9.3 | 10 PM | 11.5 | 05 PM |
| Milwaukee | Milwaukee - College Ave NR | µg/m³ | 7.1 | 09 PM | 8.9 | 06 AM |
| Forest | Potawatomi | µg/m³ | 17.4 | 09 PM | 20.8 | 10 AM |
| Grant | Potosi | µg/m³ | 7.3 | 11 PM | 8.8 | 10 PM |
| Waukesha | Waukesha | µg/m³ | 7.8 | 01 PM | 12.6 | 07 AM |