How Clean Was Your Air Today?

Air pollution is not evenly distributed. It changes with traffic, density, and how cities function day to day.

This campaign focuses on air quality as a signal, not an isolated metric.

Austria, in context

Research comparing Austria’s Danube River basin with South Korea’s Han River shows that air quality closely tracks broader environmental pressure. Across 1,800 field measurements paired with atmospheric data, air quality indices aligned strongly with industrial and urban pollution indicators.

When data from both countries were evaluated cumulatively, air quality explained up to 87% of the variation in environmental stress across air and water systems. This suggests that what we breathe often reflects wider patterns of pollution shaped by population density and infrastructure, not just isolated sources.

Air quality is therefore not only a health indicator. It is a proxy for how environmental pressure concentrates where people live and move.

Vienna, in numbers

Vienna generally meets EU annual air-quality limits, but averages hide variation.

In 2024, Vienna’s citywide average PM2.5 concentration was about 10 μg/m³, with higher values recorded at traffic-influenced monitoring sites. On peak days, daily PM2.5 levels reached nearly 50 μg/m³, depending on location and conditions.

This means exposure depends less on whether a city “passes” a standard and more on where and how you move through it: busy intersections, commute corridors, waiting points, and quieter parallel routes.

What to notice today

You don’t need to track every number.

Just notice where air quality changes along your routine. A street with constant traffic. A bike lane set back from the road. A stop where engines idle.

Air quality becomes meaningful when it is seen in context.

So today, as you move through the city, ask one simple question:

How clean was your air today?

Works Cited

European Environment Agency. (2024). Air quality in Europe - 2024 report. Publications Office of the European Union. https://www.eea.europa.eu

Landesregierung Wien. (2024). Luftgüte in Wien: Jahresbericht 2024 [Air quality in Vienna: Annual report 2024]. Municipal Department 22 - Environmental Protection. https://www.wien.gv.at