Tab. II.5.2 Overview of the periods with air temperatures above 27 °C for 3 or more days, and of the respective measured maximum ground-level ozone concentrations
| Month | Day | Max. daily temperature [°C] | Max. O3 [μg.m-3] |
| Äerven | 7–15 | 27.3–30.8 | 176 |
| Äerven | 19–21 | 28.0–31.9 | 168 |
| Äervenec | 14–21 | 28.2–37.6 | 240 |
| srpen | 6–9 | 27.6–31.5 | 178 |
| srpen | 14–16 | 27.1–30.7 | 151 |