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 | 26.2 | 11 PM | 30.7 | 10 AM |
| Kenosha | Chiwaukee Prairie | ppb | 33.9 | 06 PM | 35.7 | 06 PM |
| Eau Claire | Eau Claire DOT Sign Shop | ppb | 44 | 06 PM | 46.7 | 04 PM |
| Dodge | Horicon Wildlife Area | ppb | 37.9 | 06 PM | 40 | 04 PM |
| Kenosha | Kenosha-Water Tower | ppb | 37.3 | 06 PM | 38.4 | 01 PM |
| Forest | Potawatomi | ppb | 30.1 | 12 AM | 32.8 | 02 PM |