Ireland City AQI Comparison
Rank cities side by side using OpenAQ PM2.5 and PM10 history normalized to US EPA AQI. This pilot covers 20 eligible cities with OpenAQ-derived daily AQI history.
Compare two cities
vs
Featured comparisons
Limerick vs Palmerston→
Highest vs cleanest city
AQI gap 31320 / 324 days
Limerick vs Enniscorthy→
Highest-AQI pair
AQI gap 2320 / 102 days
Limerick vs Ballyfermot→
High vs mid-range city
AQI gap 12320 / 339 days
Enniscorthy vs Palmerston→
Second-highest vs cleanest city
AQI gap 29102 / 324 days
Douglas vs Ros Comáin→
High vs low-AQI city
AQI gap 1870 / 202 days
Enniscorthy vs Ros Comáin→
High vs low-AQI city
AQI gap 19102 / 202 days
Enniscorthy vs Douglas→
Similar high-AQI cities
AQI gap 1102 / 70 days
Douglas vs Cork→
High vs low-AQI city
AQI gap 1470 / 297 days
Douglas vs Trim→
Similar high-AQI cities
AQI gap 170 / 195 days
Trim vs Waterford→
High vs low-AQI city
AQI gap 12195 / 289 days
Trim vs Finglas→
Similar high-AQI cities
AQI gap 3195 / 69 days
Finglas vs Carlow→
High vs low-AQI city
AQI gap 869 / 274 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.