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Measured (black) and expected (blue) values  Station Graz is operated by Amt der Steiermärkischen Landesregierung
Forecast is valid for clear sky and an amount of ozone forecasted by NOAA to be 335 DU |
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| Climatology  |
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| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | >10 |
| low | moderate | high | very high | extreme | ||||||