Peru City AQI Comparison
Rank cities side by side using OpenAQ PM2.5 and PM10 history normalized to US EPA AQI. This pilot covers 14 eligible cities with OpenAQ-derived daily AQI history.
Compare two cities
vs
Featured comparisons
Huaycan vs Sullana→
Highest vs cleanest city
AQI gap 138362 / 280 days
Huaycan vs Lima→
Highest-AQI pair
AQI gap 62362 / 367 days
Huaycan vs Chimbote→
High vs mid-range city
AQI gap 101362 / 280 days
Lima vs Sullana→
Second-highest vs cleanest city
AQI gap 76367 / 280 days
Ascope vs Moquegua→
High vs low-AQI city
AQI gap 52280 / 279 days
Lima vs Moquegua→
High vs low-AQI city
AQI gap 75367 / 279 days
Lima vs Ascope→
Similar high-AQI cities
AQI gap 23367 / 280 days
Ascope vs Huánuco→
High vs low-AQI city
AQI gap 38280 / 78 days
Ascope vs Pisco→
Similar high-AQI cities
AQI gap 5280 / 253 days
Pisco vs Huari→
High vs low-AQI city
AQI gap 20253 / 280 days
Pisco vs Arequipa→
Similar high-AQI cities
AQI gap 5253 / 280 days
Arequipa vs Paita→
High vs low-AQI city
AQI gap 14280 / 280 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.