Tab. II.5.1 Number and duration of smog situations and regulations due to to high PM10 concentrations
| SVRS area | Number of announcements | Duration [h] | ||
| Smog situation | Regulation | Smog situation | Regulation | |
| Central Bohemian Region | 3 | 1 | 256 | 2 |
| Hradec Králové Region and Pardubice Region | 1 | 1 | 95 | 38 |
| Ústà nad Labem Region | 1 | – | 100 | – |
| Zone Moravia-Silesia | 1 | – | 39 | – |
| Agglomeration Ostrava/Karviná/Frýdek-MÃstek without TÅ™inec area | 7 | 1 | 985 | 467 |
| Třinec area | 3 | 2 | 450 | 398 |
| Total | 16 | 5 | 1924 | 905 |
The table presents only the SVRS areas with at least one smog situation announcement. The duration of smog situation includes also the duration of regulation (if announced). The warning signals according to the old act are included into smog situations according to the new act.