| County | Site | Units | 24-Hour | Hour Of Day | 1 Hour | Hour Of Day |
|---|---|---|---|---|---|---|
| Outagamie | Appleton | µg/m³ | 5.3 | 01 AM | 5.7 | 01 AM |
| Ashland | Bad River | µg/m³ | 4.8 | 01 AM | 5 | 01 AM |
| Kenosha | Chiwaukee Prairie | µg/m³ | 7.4 | 11 AM | 11.2 | 01 AM |
| Sauk | Devil's Lake | µg/m³ | 6.3 | 09 PM | 8.2 | 05 AM |
| Eau Claire | Eau Claire | µg/m³ | 6.2 | 02 PM | 8.3 | 09 AM |
| Brown | Green Bay - East High | µg/m³ | 5.4 | 01 AM | 5.6 | 10 PM |
| Ozaukee | Harrington Beach | µg/m³ | 6 | 06 AM | 10.7 | 01 AM |
| Dodge | Horicon | µg/m³ | 6.6 | 05 AM | 8.5 | 05 AM |
| Marathon | Lake DuBay | µg/m³ | ||||
| Dane | Madison - East | µg/m³ | 8.8 | 07 PM | 11.8 | 01 PM |
| Dane | Madison - Univ. Ave | µg/m³ | 8.1 | 08 PM | 11.8 | 03 AM |
| Milwaukee | Milwaukee-16th St. | µg/m³ | 8.5 | 04 AM | 13 | 01 AM |
| Milwaukee | Milwaukee - College Ave NR | µg/m³ | 8.7 | 03 PM | 14.2 | 01 AM |
| Forest | Potawatomi | µg/m³ | 2.8 | 01 AM | 4.2 | 12 AM |
| Grant | Potosi | µg/m³ | 10.4 | 09 PM | 14.6 | 04 PM |
| Waukesha | Waukesha | µg/m³ | 8.8 | 03 PM | 13 | 07 AM |