Italy City AQI Comparison
Rank cities side by side using OpenAQ PM2.5 and PM10 history normalized to US EPA AQI. This pilot covers 132 eligible cities with OpenAQ-derived daily AQI history.
Compare two cities
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Featured comparisons
Casalmaggiore vs Macomer→
Highest vs cleanest city
AQI gap 11233 / 67 days
Casalmaggiore vs San Pietro Vernotico→
Highest-AQI pair
AQI gap 2633 / 299 days
Casalmaggiore vs Varese→
High vs mid-range city
AQI gap 8233 / 140 days
San Pietro Vernotico vs Macomer→
Second-highest vs cleanest city
AQI gap 86299 / 67 days
Ceglie Messapico vs Casale Monferrato→
High vs low-AQI city
AQI gap 63244 / 206 days
San Pietro Vernotico vs Casale Monferrato→
High vs low-AQI city
AQI gap 79299 / 206 days
San Pietro Vernotico vs Ceglie Messapico→
Similar high-AQI cities
AQI gap 16299 / 244 days
Ceglie Messapico vs Lecco→
High vs low-AQI city
AQI gap 62244 / 282 days
Ceglie Messapico vs La Loggia→
Similar high-AQI cities
AQI gap 20244 / 100 days
La Loggia vs Grosseto→
High vs low-AQI city
AQI gap 40100 / 261 days
La Loggia vs Sesto San Giovanni→
Similar high-AQI cities
AQI gap 2100 / 140 days
Sesto San Giovanni vs Sondrio→
High vs low-AQI city
AQI gap 36140 / 287 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.