Highest Ozone
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| County | Site | Units | 8-Hour | Hour of Day | 1-Hour | Hour of Day |
|---|---|---|---|---|---|---|
| Ashland | Bad River Tribal School | ppb | 44.6 | 05 PM | 46.8 | 04 PM |
| Kenosha | Chiwaukee Prairie | ppb | 51 | 06 PM | 53 | 03 PM |
| Eau Claire | Eau Claire DOT Sign Shop | ppb | 45.5 | 05 PM | 47.9 | 03 PM |
| Dodge | Horicon Wildlife Area | ppb | 43 | 07 PM | 46.4 | 05 PM |
| Kenosha | Kenosha-Water Tower | ppb | 49.9 | 07 PM | 51.9 | 04 PM |
| Forest | Potawatomi | ppb | 47.3 | 05 PM | 49.2 | 12 PM |