Mexico City AQI Comparison
Rank cities side by side using OpenAQ PM2.5 and PM10 history normalized to US EPA AQI. This pilot covers 86 eligible cities with OpenAQ-derived daily AQI history.
Compare two cities
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Featured comparisons
Saltillo vs Calpulalpan→
Highest vs cleanest city
AQI gap 9856 / 52 days
Saltillo vs San Pablo Huixtepec→
Highest-AQI pair
AQI gap 056 / 36 days
Saltillo vs Ciudad Apodaca→
High vs mid-range city
AQI gap 4656 / 106 days
San Pablo Huixtepec vs Calpulalpan→
Second-highest vs cleanest city
AQI gap 9836 / 52 days
Tlaquepaque vs Ciudad de Atlixco→
High vs low-AQI city
AQI gap 73157 / 55 days
San Pablo Huixtepec vs Ciudad de Atlixco→
High vs low-AQI city
AQI gap 7936 / 55 days
San Pablo Huixtepec vs Tlaquepaque→
Similar high-AQI cities
AQI gap 636 / 157 days
Tlaquepaque vs Huichapan→
High vs low-AQI city
AQI gap 70157 / 39 days
Tlaquepaque vs Cholula de Rivadabia→
Similar high-AQI cities
AQI gap 8157 / 57 days
Cholula de Rivadabia vs Nuevo Laredo→
High vs low-AQI city
AQI gap 5757 / 353 days
Cholula de Rivadabia vs Metepec→
Similar high-AQI cities
AQI gap 257 / 48 days
Metepec vs Heroica Matamoros→
High vs low-AQI city
AQI gap 5448 / 321 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.