Romania City AQI Comparison
Rank cities side by side using OpenAQ PM2.5 and PM10 history normalized to US EPA AQI. This pilot covers 69 eligible cities with OpenAQ-derived daily AQI history.
Compare two cities
vs
Featured comparisons
Domneşti vs Timişoara→
Highest vs cleanest city
AQI gap 80113 / 124 days
Domneşti vs Sibiu→
Highest-AQI pair
AQI gap 18113 / 220 days
Domneşti vs Tomeşti→
High vs mid-range city
AQI gap 48113 / 345 days
Sibiu vs Timişoara→
Second-highest vs cleanest city
AQI gap 62220 / 124 days
Dej vs Bucharest→
High vs low-AQI city
AQI gap 48333 / 346 days
Sibiu vs Bucharest→
High vs low-AQI city
AQI gap 60220 / 346 days
Sibiu vs Dej→
Similar high-AQI cities
AQI gap 12220 / 333 days
Dej vs Voluntari→
High vs low-AQI city
AQI gap 37333 / 315 days
Dej vs Baciu→
Similar high-AQI cities
AQI gap 10333 / 278 days
Baciu vs Braşov→
High vs low-AQI city
AQI gap 23278 / 130 days
Baciu vs Bragadiru→
Similar high-AQI cities
AQI gap 1278 / 293 days
Bragadiru vs Chitila→
High vs low-AQI city
AQI gap 14293 / 300 days
Methodology
The extractor maps OpenAQ monitoring locations to the nearest AQI Now city in the same country, aggregates PM2.5 and PM10 to daily city averages, and converts those concentrations to US EPA AQI. Country tool pages use only city summaries that satisfy the configured minimum daily coverage threshold.