Air information – current ozone levels
High temperatures during the summer months can be accompanied by elevated levels of ground level ozone. We provide up-to-date information on ozone levels for the whole of Austria.
| OZONE REPORT FOR 21.05.2026, 18:00h, PRODUCED ON 21.05.2026, 18:20h | |||
| Region | Maximum daily 1-hour mean [µg/m³] | Time of maximum daily 1-hour mean | Exceedances |
| Nordostösterreich | 105 | 18:00 | no exceedances |
| Südostösterreich mit mittlerem Murtal | 100 | 01:00 | no exceedances |
| Oberösterreich und nördliches Salzburg | 93 | 01:00 | no exceedances |
| Pinzgau, Pongau und Steiermark nördlich der Niederen Tauern | 108 | 18:00 | no exceedances |
| Nordtirol | 102 | 08:00 | no exceedances |
| Vorarlberg | 97 | 15:00 | no exceedances |
| Kärnten und Osttirol | 108 | 13:00 | no exceedances |
| Lungau und oberes Murtal | 102 | 15:00 | no exceedances |
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| LEGEND: |
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Air quality measurements of the Austrian federal network and of the Austrian provinces, compiled by the Environment Agency Austria Based on provisional (non-validated) data Ozone information threshold: 180 µg/m³ as one-hour mean Ozone alert threshold: 240 µg/m³ as one-hour mean Ozone target value: 120 µg/m³ as maximum daily eight-hour mean (not to be exceeded on more than 25 days per year, averaged over three years) |
| Recommended (optional) actions in case of exceedance of the ozone information threshold: |
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At ozone concentrations above the information threshold, it is possible that very sensitive individuals may experience minor symptoms during strenuous physical activity. Usual outdoor activities e.g. walking, bathing or picnics - are safe even for vulnerable individuals. They should, however, check the ozone forecast for their area. Other personal precautions are only necessary if the ozone alert threshold is exceeded. |
| Recommended (optional) actions in case of exceedance of the ozone alert threshold: |
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Ozone concentrations above the alert threshold may cause irritations of the mucous membranes or breathing problems. Unusual and strenuous physical activity, particularly at midday and in the afternoon, should be avoided. Individuals who are at risk such as children with bronchial hyper-reactivity, individuals with severe respiratory diseases and/or heart conditions and people with asthma should consider staying indoors in smoke-free areas. Please contact your doctor for personal health advice. |
| Maximum eight-hour mean ozone concentrations for 21.05.2026, 18:00h | ||
| Region | Maximum daily 8-hour mean [µg/m³] | Time of maximum daily 8-hour mean |
| Nordostösterreich | 96 | 18:00 |
| Südostösterreich mit mittlerem Murtal | 93 | 17:00 |
| Oberösterreich und nördliches Salzburg | 90 | 02:00 |
| Pinzgau, Pongau und Steiermark nördlich der Niederen Tauern | 104 | 14:00 |
| Nordtirol | 100 | 02:00 |
| Vorarlberg | 89 | 17:00 |
| Kärnten und Osttirol | 103 | 18:00 |
| Lungau und oberes Murtal | 98 | 18:00 |
| Nordostösterreich - 21.05.2026, 18:00h ^OVERVIEW | ||||||
| Monitoring site | Latest updated 1-hour mean [µg/m³] | Time of latest 1-hour mean | Current 8-hour mean [µg/m³] | Maximum 1-hour mean [µg/m³] | Time of maximum 1-hour mean | Duration [h] |
| Hainburg Krankenhaus | 105 | 18:00 | 95 | 105 | 18:00 | 0 |
| Gänserndorf Baumschulweg | 105 | 18:00 | 96 | 105 | 18:00 | 0 |
| Illmitz am Neusiedler See | 103 | 18:00 | 95 | 103 | 18:00 | 0 |
| Stixneusiedl | 102 | 18:00 | 93 | 102 | 18:00 | 0 |
| Lobau | 101 | 18:00 | 89 | 101 | 18:00 | 0 |
| Hohe Warte | 99 | 18:00 | 91 | 101 | 17:00 | 0 |
| Kittsee | 100 | 18:00 | 91 | 100 | 18:00 | 0 |
| Klosterneuburg Meynertgasse | 94 | 18:00 | 88 | 97 | 17:00 | 0 |
| AKH | 91 | 18:00 | 85 | 97 | 17:00 | 0 |
| Mistelbach Steinhübel | 96 | 18:00 | 87 | 96 | 18:00 | 0 |
| Stephansplatz | 91 | 18:00 | 85 | 96 | 17:00 | 0 |
| Heidenreichstein Thaures | 93 | 18:00 | 90 | 95 | 16:00 | 0 |
| Wiesmath | 94 | 18:00 | 90 | 95 | 17:00 | 0 |
| Wiener Neustadt | 95 | 18:00 | 88 | 95 | 18:00 | 0 |
| Eisenstadt Laschoberstraße | 94 | 17:00 | 87 | 94 | 17:00 | 0 |
| Wolkersdorf | 94 | 18:00 | 88 | 94 | 16:00 | 0 |
| Schwechat Sportplatz, Mühlgasse | 94 | 18:00 | 87 | 94 | 18:00 | 0 |
| Dunkelsteinerwald - Unterbergern | 93 | 18:00 | 90 | 93 | 17:00 | 0 |
| Krems | 93 | 18:00 | 89 | 93 | 18:00 | 0 |
| Ziersdorf | 92 | 18:00 | 88 | 92 | 18:00 | 0 |
| Schafberg | 92 | 17:00 | 81 | 92 | 17:00 | 0 |
| Bad Vöslau, Gainfarn | 89 | 18:00 | 84 | 91 | 17:00 | 0 |
| Himberg, Alter Markt | 91 | 17:00 | 83 | 91 | 17:00 | 0 |
| Annaberg, Joachimsberg | 89 | 18:00 | 85 | 90 | 16:00 | 0 |
| Pillersdorf bei Retz | 90 | 17:00 | 85 | 90 | 17:00 | 0 |
| Tulln Leopoldgasse | 85 | 18:00 | 82 | 89 | 16:00 | 0 |
| Lutzmannsburg Sportplatz | 88 | 18:00 | 83 | 88 | 18:00 | 0 |
| Mödling Bachgasse | 87 | 18:00 | 81 | 87 | 18:00 | 0 |
| Trasdorf im Tullnerfeld | 84 | 18:00 | 84 | 87 | 14:00 | 0 |
| Forsthof am Schöpfl | 86 | 18:00 | 78 | 86 | 17:00 | 0 |
| Kematen an der Ybbs | 76 | 18:00 | 76 | 86 | 14:00 | 0 |
| Kollmitzberg | 82 | 18:00 | 78 | 85 | 17:00 | 0 |
| Purkersdorf, Tullnerbachstraße | 77 | 18:00 | 67 | 84 | 01:00 | 0 |
| Liesing - Carlberger-Gasse Gewerbegebiet | 83 | 18:00 | 76 | 83 | 17:00 | 0 |
| Pöchlarn | 81 | 18:00 | 72 | 81 | 18:00 | 0 |
| Amstetten | 80 | 18:00 | 75 | 80 | 18:00 | 0 |
| St. Pölten Eybnerstraße | 71 | 18:00 | 67 | 78 | 16:00 | 0 |
| Südostösterreich mit mittlerem Murtal - 21.05.2026, 18:00h ^OVERVIEW | ||||||
| Monitoring site | Latest updated 1-hour mean [µg/m³] | Time of latest 1-hour mean | Current 8-hour mean [µg/m³] | Maximum 1-hour mean [µg/m³] | Time of maximum 1-hour mean | Duration [h] |
| Graz Lustbühel | 91 | 15:00 | 100 | 01:00 | 0 | |
| Graz Schloßberg | 95 | 15:00 | 98 | 01:00 | 0 | |
| Graz Nord Gösting | 95 | 15:00 | 98 | 01:00 | 0 | |
| Köflach | 97 | 15:00 | 97 | 12:00 | 0 | |
| Deutschlandsberg Rathausgasse | 96 | 15:00 | 96 | 15:00 | 0 | |
| Klöch bei Bad Radkersburg | 91 | 15:00 | 94 | 04:00 | 0 | |
| Rohr im Burgenland | 93 | 18:00 | 87 | 93 | 18:00 | 0 |
| Graz Süd Tiergartenweg | 93 | 15:00 | 93 | 15:00 | 0 | |
| Leoben Zentrum | 92 | 15:00 | 92 | 15:00 | 0 | |
| Arnfels - Remschnigg | 92 | 15:00 | 92 | 15:00 | 0 | |
| Masenberg | 90 | 15:00 | 91 | 02:00 | 0 | |
| Hartberg Zentrum | 90 | 15:00 | 91 | 12:00 | 0 | |
| Oberwart B63a | 89 | 18:00 | 87 | 90 | 15:00 | 0 |
| Mürzzuschlag Roseggerpark | 85 | 15:00 | 90 | 04:00 | 0 | |
| Voitsberg Mühlgasse | 89 | 15:00 | 89 | 15:00 | 0 | |
| Rennfeld | 89 | 15:00 | 89 | 15:00 | 0 | |
| Weiz Bahnhofstraße | 85 | 15:00 | 86 | 14:00 | 0 | |
| Fürstenfeld Ungartorweg | 6 | 15:00 | 84 | 01:00 | 0 | |
| Oberösterreich und nördliches Salzburg - 21.05.2026, 18:00h ^OVERVIEW | ||||||
| Monitoring site | Latest updated 1-hour mean [µg/m³] | Time of latest 1-hour mean | Current 8-hour mean [µg/m³] | Maximum 1-hour mean [µg/m³] | Time of maximum 1-hour mean | Duration [h] |
| Feuerkogel (Höllengebirge) | 93 | 15:00 | 93 | 01:00 | 0 | |
| Haunsberg | 89 | 18:00 | 80 | 89 | 18:00 | 0 |
| Traun Tischlerstraße | 87 | 15:00 | 87 | 15:00 | 0 | |
| St. Koloman Kleinhorn | 80 | 18:00 | 75 | 87 | 01:00 | 0 |
| Salzburg Airport Kendlerstraße | 78 | 18:00 | 72 | 86 | 17:00 | 0 |
| Zöbelboden im Reichraminger Hintergebirge - Wildwiese | 86 | 18:00 | 78 | 86 | 18:00 | 0 |
| Wels Linzerstraße | 85 | 15:00 | 85 | 15:00 | 0 | |
| Steyr Münichholz | 84 | 15:00 | 84 | 15:00 | 0 | |
| Linz Stadtpark, Noßbergerstraße | 83 | 15:00 | 83 | 15:00 | 0 | |
| Enzenkirchen im Sauwald | 81 | 15:00 | 81 | 15:00 | 0 | |
| Salzburg Lehen Paumannpark | 80 | 18:00 | 69 | 80 | 18:00 | 0 |
| Linz Neue Welt | 78 | 15:00 | 78 | 15:00 | 0 | |
| Hallein Winterstall | 70 | 18:00 | 68 | 77 | 16:00 | 0 |
| Lenzing Hauptstraße | 70 | 15:00 | 75 | 01:00 | 0 | |
| Grünbach bei Freistadt | 69 | 12:00 | 71 | 02:00 | 0 | |
| Braunau Zentrum, Kolpingplatz | 70 | 15:00 | 70 | 15:00 | 0 | |
| Vöcklabruck, Untere Agergasse | 70 | 15:00 | 70 | 15:00 | 0 | |
| Bad Ischl, Rettenbachwaldstraße | 53 | 15:00 | 53 | 15:00 | 0 | |
| Pinzgau, Pongau und Steiermark nördlich der Niederen Tauern - 21.05.2026, 18:00h ^OVERVIEW | ||||||
| Monitoring site | Latest updated 1-hour mean [µg/m³] | Time of latest 1-hour mean | Current 8-hour mean [µg/m³] | Maximum 1-hour mean [µg/m³] | Time of maximum 1-hour mean | Duration [h] |
| Sonnblick | 108 | 18:00 | 104 | 108 | 18:00 | 0 |
| Zell am See Freizeitzentrum/Eishalle | 87 | 17:00 | 76 | 87 | 17:00 | 0 |
| Grundlsee Tressensattel | 87 | 18:00 | 73 | 87 | 18:00 | 0 |
| St. Johann im Pongau, Bezirkshauptmannschaft | 76 | 18:00 | 70 | 82 | 17:00 | 0 |
| Liezen Pyhrnbach | 82 | 15:00 | 82 | 15:00 | 0 | |
| Hochwurzen | 72 | 15:00 | 79 | 01:00 | 0 | |
| Nordtirol - 21.05.2026, 18:00h ^OVERVIEW | ||||||
| Monitoring site | Latest updated 1-hour mean [µg/m³] | Time of latest 1-hour mean | Current 8-hour mean [µg/m³] | Maximum 1-hour mean [µg/m³] | Time of maximum 1-hour mean | Duration [h] |
| Innsbruck Nordkette (Seegrube) | 89 | 18:00 | 92 | 102 | 08:00 | 0 |
| Heiterwang Ort L355 | 100 | 18:00 | 94 | 101 | 17:00 | 0 |
| St. Anton am Arlberg - Galzig | 100 | 18:00 | 98 | 100 | 18:00 | 0 |
| Innsbruck Sadrach | 99 | 15:00 | 99 | 15:00 | 0 | |
| Innsbruck Andechsstraße | 84 | 18:00 | 85 | 94 | 15:00 | 0 |
| Höfen Lärchbichl | 94 | 15:00 | 94 | 15:00 | 0 | |
| Kufstein Festung | 91 | 18:00 | 71 | 91 | 18:00 | 0 |
| Kramsach Angerberg | 76 | 18:00 | 69 | 78 | 15:00 | 0 |
| Vorarlberg - 21.05.2026, 18:00h ^OVERVIEW | ||||||
| Monitoring site | Latest updated 1-hour mean [µg/m³] | Time of latest 1-hour mean | Current 8-hour mean [µg/m³] | Maximum 1-hour mean [µg/m³] | Time of maximum 1-hour mean | Duration [h] |
| Lustenau Wiesenrain | 97 | 15:00 | 97 | 15:00 | 0 | |
| Sulzberg - Gmeind | 96 | 15:00 | 96 | 15:00 | 0 | |
| Wald am Arlberg S16 | 94 | 15:00 | 96 | 13:00 | 0 | |
| Bludenz Herrengasse | 93 | 15:00 | 93 | 15:00 | 0 | |
| Kärnten und Osttirol - 21.05.2026, 18:00h ^OVERVIEW | ||||||
| Monitoring site | Latest updated 1-hour mean [µg/m³] | Time of latest 1-hour mean | Current 8-hour mean [µg/m³] | Maximum 1-hour mean [µg/m³] | Time of maximum 1-hour mean | Duration [h] |
| Lienz Tiefbrunnen | 103 | 18:00 | 103 | 108 | 13:00 | 0 |
| Gerlitzen Steinturm | 106 | 16:00 | 101 | 106 | 16:00 | 0 |
| Vorhegg bei Kötschach-Mauthen | 105 | 15:00 | 106 | 14:00 | 0 | |
| Obervellach Schulzentrum | 98 | 15:00 | 100 | 12:00 | 0 | |
| Spittal a. d. Drau Oktoberstraße | 97 | 15:00 | 97 | 13:00 | 0 | |
| Klagenfurt Kreuzbergl | 95 | 16:00 | 84 | 95 | 16:00 | 0 |
| Kraiger Berg bei St. Veit an der Glan | 95 | 16:00 | 95 | 16:00 | 0 | |
| Wolfsberg Hauptschule | 91 | 15:00 | 93 | 14:00 | 0 | |
| St. Georgen im Lavanttal - Herzogberg | 90 | 15:00 | 90 | 15:00 | 0 | |
| Klagenfurt Sterneckstraße | 88 | 15:00 | 88 | 15:00 | 0 | |
| Arnoldstein Gailitz Waldsiedlungsstraße | 88 | 15:00 | 88 | 15:00 | 0 | |
| Lungau und oberes Murtal - 21.05.2026, 18:00h ^OVERVIEW | ||||||
| Monitoring site | Latest updated 1-hour mean [µg/m³] | Time of latest 1-hour mean | Current 8-hour mean [µg/m³] | Maximum 1-hour mean [µg/m³] | Time of maximum 1-hour mean | Duration [h] |
| Tamsweg Untere Postgasse | 95 | 18:00 | 98 | 102 | 15:00 | 0 |
| Grebenzen bei St. Lambrecht | 92 | 15:00 | 96 | 04:00 | 0 | |
| Zederhaus Lamm | 89 | 18:00 | 89 | 93 | 14:00 | 0 |
| Judenburg, Sportplatz | 87 | 15:00 | 92 | 13:00 | 0 | |