Greece City AQI Comparison
Rank cities side by side using OpenAQ PM2.5 and PM10 history normalized to US EPA AQI. This pilot covers 22 eligible cities with OpenAQ-derived daily AQI history.
Compare two cities
vs
Featured comparisons
Kalamariá vs Cholargós→
Highest vs cleanest city
AQI gap 4424 / 300 days
Kalamariá vs Athens→
Highest-AQI pair
AQI gap 2624 / 293 days
Kalamariá vs Lykóvrysi→
High vs mid-range city
AQI gap 3324 / 294 days
Athens vs Cholargós→
Second-highest vs cleanest city
AQI gap 18293 / 300 days
Korydallós vs Panórama→
High vs low-AQI city
AQI gap 1528 / 326 days
Athens vs Panórama→
High vs low-AQI city
AQI gap 17293 / 326 days
Athens vs Korydallós→
Similar high-AQI cities
AQI gap 2293 / 28 days
Korydallós vs Piraeus→
High vs low-AQI city
AQI gap 1428 / 294 days
Korydallós vs Alexandroúpoli→
Similar high-AQI cities
AQI gap 228 / 55 days
Alexandroúpoli vs Acharnés→
High vs low-AQI city
AQI gap 955 / 254 days
Alexandroúpoli vs Thessaloniki→
Similar high-AQI cities
AQI gap 055 / 307 days
Thessaloniki vs Vólos→
High vs low-AQI city
AQI gap 8307 / 200 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.