Built for fast public comparison
Use the starter cities for orientation or search another European city without leaving the page.
European urban air quality, made legible
Compare European city air quality in one live, shareable dashboard.
Check current conditions, yesterday, and the last seven days across European cities with a multilingual public-information homepage.
Live source
Open-Meteo data
Languages
5 local views
Shareable
URL state preserved
Live public data
Current and hourly values are fetched from Open-Meteo for each selected city.
Search or start fast
Begin with major European cities or add another city with the search box below.
Built for civic clarity
The page combines comparison, pollution basics, and city-facing context in one entrypoint.
City comparison
Compare live city air quality, add new cities, and share the exact view.
Choose a metric, choose a time window, then build a comparison of up to four European cities.
URL-shareable state
Language, metric, timeframe, and selected cities stay in the URL so the current view can be reviewed or sent to someone else.
Time scale
Metric
Starter cities
Selected cities
Choose up to four cities for side-by-side comparison.
7 day trend
How to read the dashboard
AQI colors help with public interpretation. Pollutant values show raw concentrations. Keep the flow simple: choose the metric, choose the time scale, then compare cities directly or add another one.
Pollution basics
A fast primer on the indicators behind the comparison.
A dedicated explainer layer keeps the underlying pollutants understandable without taking attention away from the comparison tool.
European AQI
A public-facing summary index used to compare how difficult air conditions are to tolerate at a glance.
PM2.5
Very small airborne particles that can travel deep into the lungs and stay elevated for long periods during stagnant conditions.
PM10
Coarser particles often linked to dust, traffic, construction, and resuspension from dry urban surfaces.
Nitrogen dioxide
A common traffic-related pollutant that often spikes near busy roads and dense urban corridors.
Ozone
A secondary pollutant that often builds under sunlight and can become more pronounced in warm weather patterns.
Methodology & provenance
One homepage built around compare, learn, and act.
This service keeps three priorities in view: direct city comparison, clear pollutant explainers, and a useful entrypoint for cities and public stakeholders.
Compare
Track multiple cities side by side across current conditions, yesterday, and a seven-day trend.
Understand
Short explainer cards keep AQI and pollutant concepts visible without interrupting the tool.
Connect
The page is structured as a practical public entrypoint that can support local communication and broader city participation.