SmogRank / World / Europe / Austria / Lower Austria

Most polluted cities in Lower Austria, Austria

10 measured cities, this year; 10 above the WHO annual guideline. Worst: Baden at 14.3 µg/m³, #599 in the world.

About 355 people in these 3 cities breathed unhealthy air on an average day so far this year.

Ranked by people: each city's population times its share of unhealthy days, those with a daily mean over 35.4 µg/m³ (US AQI 101+). That is how many people living there breathed unhealthy air on an average day. Only cities measured at 2 or more places at least 3 km apart are ranked: one monitor shouldn't speak for a whole city. Population is the city itself, not its wider metro area.

Lower Austria: 10 measured citiesUpper Austria: 7 measured citiesBurgenland: 2 measured citiesStyria: 10 measured citiesVienna: 1 measured city#10 Sankt Pölten: 9.3 µg/m³#8 Mödling: 9.4 µg/m³#9 Groß-Enzersdorf: 9.4 µg/m³#7 Perchtoldsdorf: 9.6 µg/m³#5 Klosterneuburg: 10.0 µg/m³#6 Hainburg an der Donau: 10.0 µg/m³#3 Sankt Valentin: 10.1 µg/m³#4 Amstetten: 10.1 µg/m³#2 Tulln: 10.4 µg/m³#1 Baden: 14.3 µg/m³
Each dot is a measured city, coloured by its PM2.5; tap a dot to open the city.
← Tulln 232 2000
Every measured city in Lower Austria, Austria with monitors in two or more places, one column each, ranked by people breathing unhealthy air: height is people on an average day, colour its average. Point at it to read a city; tap to open it.
  1. 1Tulln 232
  2. 2Groß-Enzersdorf 123
  3. 3Amstetten 0
Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+

The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales

Estimated: cities without a monitor

Lower Austria cities we can't measure, with model estimates for the last 7 days. Listed by population, not ranked: estimates aren't precise enough to rank. Model estimates from the Copernicus Atmosphere Monitoring Service (CAMS), adjusted to measured cities nearby where there are any. Adjusted, a single day lands within ×1.5 of what a monitor would read about two times in three; unadjusted, it can be off by half or double. Treat them as a guide, not a measurement.

City7-day estimateBand
Stockerau≈ 13 µg/m³Moderate

Bad-air episodes in Lower Austria

Times when many cities around here had PM2.5 at twice their usual or more on the same days.

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SmogRank, most polluted cities in Lower Austria, Austria, PM2.5, this year to 6 Oct 2026, 22:00 UTC, smogrank.com/at/region/lower-austria?w=year.

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You're welcome to reuse a single chart, image or figure with this citation and a link. Terms. Raw monitor readings in bulk are published by OpenAQ, under each provider's licence.

Updated 2026-10-06 22:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index.