Tab. II.4.2.13 Number of hours of the ozone alert threshold exceedence (180 μg.m-3) per year at selected AIM stations, 1992–2006
| Region | KMPL | Station | Owner | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 |
| Capital City of Prague | AKOBA | P8-Kobylisy | ČHMÚ | – | – | – | 0 | 0 | 1 | 17 | 0 | 4 | 0 | 0 | 20 | 0 | 0 | 16 |
| ALIBA | P4-Libuš | ČHMÚ | 39 | 22 | 126 | 33 | 0 | 2 | 13 | 0 | 12 | 0 | 0 | 22 | 0 | 4 | 10 | |
| AREPA | P1-nám. Republiky | ČHMÚ | 0 | 162 | 40 | 1 | 0 | 0 | 4 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | |
| ASMIA | P5-Smíchov | ČHMÚ | – | – | – | – | – | – | – | – | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| ASTOA | P5-Stodůlky | ČHMÚ | – | – | – | – | – | – | – | – | – | – | – | – | 0 | 0 | 19 | |
| ASUCA | P6-Suchdol | ČHMÚ | – | – | – | – | – | – | – | – | – | – | – | – | 0 | 1 | 24 | |
| AVELA | P6-Veleslavín | ČHMÚ | – | – | – | – | 0 | 0 | 8 | 0 | 10 | 0 | 0 | 11 | 0 | 0 | 12 | |
| AVYNA | P9-Vysočany | ČHMÚ | 0 | 5 | 175 | 39 | 1 | 0 | 9 | 0 | 11 | 0 | 0 | 7 | 0 | 0 | 1 | |
| South Moravian | BBMZA | Brno-Zvonařka | SMBRNO | – | – | – | – | – | – | – | – | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| BBNDA | Brno-střed | ČHMÚ | – | – | – | – | – | – | – | – | – | – | – | – | 0 | 0 | 0 | |
| BBNFA | Brno-Kroftova | ČHMÚ | – | – | 4 | 4 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 1 | – | – | – | |
| BBNYA | Brno-Tuřany | ČHMÚ | – | – | – | – | – | – | 8 | 0 | 0 | 1 | 0 | 8 | 0 | 0 | 12 | |
| BHODK | Hodonín | ZÚ | – | – | 0 | 8 | 46 | 0 | 27 | 0 | 10 | 0 | 0 | 7 | 0 | 0 | 1 | |
| BKUCA | Kuchařovice | ČHMÚ | – | – | – | – | – | – | – | – | – | – | – | – | 0 | 0 | 8 | |
| BMISA | Mikulov-Sedlec | ČHMÚ | – | – | – | – | 3 | 0 | 7 | 1 | 1 | 1 | 0 | 9 | 0 | 2 | 7 | |
| South Bohemian | CCBDA | České Budějovice | ČHMÚ | – | – | 1 | 26 | 26 | 3 | 4 | 0 | 0 | 0 | 0 | 5 | 0 | 0 | 2 |
| CCHUA | Churáňov | ČHMÚ | – | – | – | 3 | 4 | 0 | 15 | 0 | 0 | 0 | 0 | 28 | 0 | 0 | 49 | |
| CHVOA | Hojná Voda | ČHMÚ | – | – | 0 | 0 | 0 | 0 | 6 | 0 | 5 | 0 | 0 | 8 | 0 | 1 | 8 | |
| CKOCA | Kocelovice | ČHMÚ | – | – | – | – | – | – | – | – | – | – | – | 4 | 0 | 0 | 0 | |
| CPRAA | Prachatice | ZÚ | – | – | – | 6 | 0 | 0 | 9 | 0 | 0 | 0 | 0 | 6 | 0 | 0 | 0 | |
| CTABA | Tábor | ČHMÚ | – | – | – | – | – | – | – | – | – | – | – | 0 | 0 | 0 | 0 | |
| Pardubice | EPAOA | Pardubice-Rosice | MÚPa | – | – | – | – | – | – | 11 | 0 | 59 | 0 | 0 | 10 | 0 | 3 | 14 |
| EPAUA | Pardubice Dukla | ČHMÚ | – | – | – | – | – | – | – | – | – | 0 | 0 | 8 | 0 | 1 | 5 | |
| ESVRA | Svratouch | ČHMÚ | – | 33 | 75 | 5 | 0 | 0 | 6 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | |
| Hradec Králové | HHKBA | Hradec Králové-Brněnská | ČHMÚ | – | – | – | – | – | – | – | – | – | – | – | – | 0 | 2 | 13 |
| HHKOK | Hr.Král.-observatoř | ČHMÚ | – | – | – | 18 | 13 | 0 | 6 | 3 | 10 | 0 | 0 | 4 | 0 | 0 | 13 | |
| HHKSK | Hr.Král.-Sukovy sady | ZÚ | – | – | 0 | 40 | 16 | 0 | 5 | 0 | 11 | 0 | 0 | 2 | 0 | 0 | 0 | |
| HKRYA | Krkonoše-Rýchory | ČHMÚ | – | – | – | 0 | 169 | 3 | 20 | 1 | 2 | 0 | 5 | 27 | 0 | 0 | 1 | |
| HOHZA | Orlické hory-Zakletý I | ČHMÚ | – | – | – | – | – | – | – | – | – | – | – | 0 | 0 | 0 | – | |
| HSERA | Šerlich | ČHMÚ | – | – | – | 0 | 0 | 0 | 1 | 0 | 5 | 0 | 0 | 7 | 1 | 0 | 0 | |
| Vysočina | JJIHA | Jihlava | ČHMÚ | – | – | – | – | – | – | – | – | – | – | – | 0 | 0 | 0 | 5 |
| JKMYA | Kostelní Myslová | ČHMÚ | – | – | – | – | – | 0 | 3 | 0 | 1 | 0 | 0 | 6 | 0 | 0 | 9 | |
| JKOSA | Košetice | ČHMÚ | 0 | 7 | 27 | 2 | 2 | 0 | 1 | 0 | 4 | 0 | 0 | 7 | 0 | 0 | 0 | |
| JZNZK | Ždár nad Sázavou | ZÚ | – | – | 0 | 52 | 112 | 0 | 19 | 0 | 3 | 0 | 0 | 6 | 0 | 0 | 0 | |
| Karlovy Vary | KPRBA | Přebuz | ČHMÚ | – | – | 29 | 11 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 47 | 0 | 0 | 6 |
| KSOMA | Sokolov | ČHMÚ | – | – | 94 | 27 | 2 | 0 | 1 | 0 | 0 | 0 | 0 | 19 | 0 | 0 | 3 | |
| Liberec | LAUFA | Albrechtice u Frýdlantu | ČHMÚ | – | 0 | 167 | 14 | 2 | 0 | 4 | 0 | 9 | 0 | 0 | 0 | – | – | – |
| LLIMA | Liberec-město | ČHMÚ | – | – | – | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7 | 0 | 0 | 2 | |
| LSOUA | Souš | ČHMÚ | – | 117 | 96 | 8 | 28 | 0 | 4 | 0 | 2 | 0 | 0 | 9 | 0 | 0 | 3 | |
| Olomouc | MBUPA | Brodek u Přerova | ČHMÚ | – | – | – | – | 0 | 0 | 6 | 0 | 0 | – | – | – | – | – | – |
| MJESA | Jeseník | ČHMÚ | – | – | 5 | 50 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | |
| MOLSK | Olomouc-Šmeralova | ZÚ | – | – | 0 | 31 | 66 | 0 | 7 | 0 | 3 | 0 | 0 | 5 | 0 | 0 | 0 | |
| MOLTK | Olomouc-hotel | MÚOl | – | – | – | – | 0 | 0 | 7 | 0 | 0 | 0 | 0 | – | – | – | – | |
| MOLVA | Olomouc-Velkomoravská | MOLO | – | – | – | – | – | – | – | – | – | – | – | – | – | 0 | 0 | |
| MPRRA | Přerov | ČHMÚ | – | – | – | – | – | – | – | – | – | 0 | 0 | 1 | 0 | 0 | 1 | |
| MPSTA | Prostějov | ČHMÚ | – | – | 56 | 19 | 2 | 0 | 6 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 4 | |
| MSMPK | Šumperk | OÚŠu | – | – | – | – | 0 | 0 | 0 | 0 | 0 | 0 | 0 | – | – | – | – | |
| MSMUA | Šumperk MÚ | MŠUM | – | – | – | – | – | – | – | – | – | – | – | – | – | 0 | 0 | |
| Plzeň | PKLSK | Klatovy soud | ZÚ | – | – | 0 | 9 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9 | 0 | 0 | 0 |
| PPLAA | Plzeň-Slovany | MPl | – | – | – | – | 0 | 0 | 5 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | |
| PPLBA | Plzeň-Bory | MPl | – | – | – | – | 0 | 0 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | |
| PPLLA | Plzeň-Lochotín | MPl | – | – | – | – | 0 | 0 | 4 | 0 | 0 | 0 | 1 | 26 | 1 | 0 | 1 | |
| PPLVA | Plzeň-Doubravka | ČHMÚ | – | – | 0 | 38 | 0 | 0 | 6 | 0 | 0 | 0 | 0 | 21 | 0 | 0 | 1 | |
| PPRMA | Přimda | ČHMÚ | – | – | – | 6 | 7 | 0 | 4 | 0 | 0 | 3 | 0 | 44 | 0 | 3 | 1 | |
| Central Bohemian | SKLMA | Kladno-střed města | ČHMÚ | – | – | – | – | – | – | – | 0 | 9 | 4 | 0 | 12 | 0 | 2 | 12 |
| SMBOA | Mladá Boleslav | ČHMÚ | – | – | – | – | – | – | – | – | – | – | – | 8 | 0 | 4 | 28 | |
| SONRA | Ondřejov | ČHMÚ | – | – | 57 | 21 | 5 | 0 | 10 | 0 | 4 | 0 | 0 | 14 | 0 | 0 | 0 | |
| Moravian-Silesian | TBKRA | Bílý Kříž | ČHMÚ | – | – | 23 | 42 | 0 | 0 | 3 | 0 | 3 | 0 | 1 | 2 | 0 | 0 | 8 |
| TCERA | Červená | ČHMÚ | – | – | – | – | – | – | – | – | – | – | – | – | 0 | 0 | 0 | |
| TKARA | Karviná | ČHMÚ | – | 3 | 34 | 10 | 11 | 0 | 7 | 0 | 0 | 0 | 7 | 0 | 0 | 0 | 14 | |
| TOFFA | Ostrava-Fifejdy | ČHMÚ | – | 13 | 21 | 6 | 4 | 0 | 4 | 0 | 0 | 0 | 0 | 5 | 0 | 0 | 3 | |
| TOPRA | Ostrava-Přívoz | ČHMÚ | – | – | – | – | – | – | – | 0 | 0 | 0 | 0 | 2 | 0 | 0 | – | |
| TSTDA | Studénka | ČHMÚ | – | – | – | – | – | – | 0 | 0 | 0 | 0 | 3 | 6 | 0 | 0 | 1 | |
| TTROA | Třinec-Kosmos | ČHMÚ | – | – | – | – | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 12 | |
| Ústí nad Labem | UBINA | Bílina | ZÚ | – | – | – | 6 | 0 | 0 | 0 | 0 | – | – | – | – | – | – | – |
| UDEHK | Děčín-ZÚ | ZÚ | – | – | – | – | – | – | 0 | 0 | 0 | 0 | – | – | – | – | – | |
| ULOMA | Lom | ČHMÚ | – | – | – | – | – | – | – | – | – | – | – | – | 0 | 2 | 21 | |
| ULTHK | Litoměřice-ZÚ | ZÚ | – | – | – | – | 0 | 0 | 0 | 0 | 7 | 3 | 0 | 16 | 5 | 6 | 32 | |
| ULTTA | Litoměřice | ČHMÚ | – | – | – | – | – | – | – | – | – | – | – | 7 | 2 | 2 | 21 | |
| UMOMA | Most | ČHMÚ | – | – | – | – | – | – | 7 | 0 | 5 | 0 | 1 | 9 | 0 | 2 | 6 | |
| UMRTA | Martiněves | ČHMÚ | – | – | – | – | – | – | – | – | – | – | 1 | 0 | – | – | – | |
| UNVOA | Nová Ves v Horách | ČHMÚ | – | 31 | 97 | 13 | – | – | – | – | – | – | – | – | – | – | – | |
| URVHA | Rudolice v Horách | ČHMÚ | – | – | – | 0 | 2 | 0 | 10 | 2 | 8 | 5 | 3 | 39 | 1 | 7 | 43 | |
| USNZA | Sněžník | ČHMÚ | – | 1 | 60 | 31 | 8 | 0 | 9 | 0 | 19 | 2 | 0 | 19 | 0 | 0 | 14 | |
| UTEMA | Teplice | ČHMÚ | – | 25 | 1 | 0 | 0 | 3 | 4 | 0 | 8 | 0 | 1 | 1 | 1 | 2 | 17 | |
| UTUSA | Tušimice | ČHMÚ | – | – | 5 | 7 | 0 | 0 | 5 | 0 | 0 | 2 | 1 | 7 | 1 | 6 | 10 | |
| UULKA | Ústí n.L.-Kočkov | ČHMÚ | – | – | 0 | 23 | 1 | 5 | 18 | 0 | 14 | 0 | 0 | 5 | 2 | 0 | 11 | |
| UULMA | Ústí n.L.-město | ČHMÚ | – | – | – | – | – | 0 | 0 | 0 | 10 | 0 | 0 | 8 | 0 | 0 | 2 | |
| UVALA | Valdek | ČHMÚ | – | – | – | – | – | – | – | – | – | – | – | 20 | 0 | 0 | 11 | |
| UVSEA | Všechlapy | ČHMÚ | – | – | – | 21 | 0 | 0 | 6 | 0 | 5 | 4 | 0 | – | 0 | 0 | – | |
| UZAZA | Žatec | SŠZE Žatec | – | – | – | – | – | – | – | – | – | – | – | – | – | 0 | 1 | |
| Zlín | ZSNVA | Štítná n.Vláří | ČHMÚ | – | – | – | – | – | – | – | – | – | – | – | 12 | 0 | 0 | 14 |
| ZZLNA | Zlín | ČHMÚ | – | – | – | – | – | – | – | – | – | – | – | – | 0 | 0 | 6 | |
| ZZLTA | Zlín-Svit | MZLl | – | – | – | – | 0 | 0 | 0 | 0 | – | – | – | – | – | 0 | 0 |