SmogRank / World / Austria / Lower Austria / October 2025
Most polluted cities in Lower Austria, Austria, October 2025
1 city in Lower Austria, Austria ranked by their average PM2.5 over the 31 days. The only one: Baden at 10.2 µg/m³, #518 of 2,564 cities in the world. A city needs measurements on 70% of the days to be ranked.
Lower Austria has 12 cities ranked over the last 30 days, but only 1 here: most of its monitors have no readings for October 2025 in OpenAQ's archive, where ours come from, or too few to rank. Cities missing from this board weren't clean, just not measured.
- 1Badenlow-cost sensors 53
Low-cost sensors: consumer units, counted only in cities with no government-grade monitor; they read close to reference monitors on the whole, but 15 to 25% high in humid air. How we use them.
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
All cities in the world, October 2025 · All cities in Austria, October 2025 · Lower Austria now
Use this board
SmogRank, most polluted cities in Lower Austria, Austria, PM2.5, October 2025, smogrank.com/at/region/lower-austria/history/2025-10 (accessed 6 Oct 2026).
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.