| County | Site | Units | 24-Hour | Hour Of Day | 1 Hour | Hour Of Day |
|---|---|---|---|---|---|---|
| Outagamie | Appleton | µg/m³ | 6.2 | 01 AM | 5.9 | 01 AM |
| Ashland | Bad River Tribal School | µg/m³ | 3.8 | 01 AM | 6 | 08 PM |
| Kenosha | Chiwaukee Prairie | µg/m³ | 11.3 | 08 AM | 13.3 | 03 AM |
| Sauk | Devils Lake | µg/m³ | 9.5 | 02 AM | 9.1 | 01 AM |
| Eau Claire | Eau Claire DOT Sign Shop | µg/m³ | 7.1 | 01 AM | 9.4 | 10 PM |
| Brown | Green Bay East High | µg/m³ | 4.6 | 01 AM | 4.8 | 01 AM |
| Ozaukee | Harrington Beach Park | µg/m³ | 6.6 | 05 AM | 7.6 | 01 AM |
| Dodge | Horicon Wildlife Area | µg/m³ | 10.1 | 03 AM | 9.7 | 01 AM |
| Marathon | Lake Dubay | µg/m³ | 5.3 | 01 AM | 3.4 | 12 AM |
| Dane | Madison East | µg/m³ | 13.4 | 04 AM | 16.8 | 01 AM |
| Dane | Madison University Ave. Well #6 | µg/m³ | 11.8 | 04 AM | 14.9 | 01 AM |
| Milwaukee | Milwaukee-16th St. Health Center | µg/m³ | 12.6 | 04 AM | 16.3 | 01 AM |
| Milwaukee | Milwaukee-College Ave NR | µg/m³ | 12 | 07 AM | 14.1 | 01 AM |
| Forest | Potawatomi | µg/m³ | 3.7 | 01 AM | 2.3 | 01 AM |
| Grant | Potosi | µg/m³ | 15 | 05 AM | 32.5 | 12 AM |
| Waukesha | Waukesha-Cleveland Ave. | µg/m³ | 14.5 | 06 AM | 15.8 | 01 AM |