SmogRank / Countries / Mexico / October 2024

Most polluted cities in Mexico, October 2024

10 cities in Mexico ranked by their average PM2.5 over the 31 days. Worst: Tijuana at 17.7 µg/m³, #107 of 1,561 cities in the world. Cleanest: San Miguel de Allende at 10.3. A city needs measurements on 70% of the days to be ranked.

  1. 1TijuanaBaja California
    17.7
  2. 2Silao de la VictoriaGuanajuato
    17.0
  3. 3León de los AldamaGuanajuato
    16.3
  4. 4IrapuatoGuanajuato
    13.8
  5. 5CelayaGuanajuato
    12.6
  6. 6SalamancaGuanajuato
    12.2
  7. 7San Luis de la PazGuanajuato
    11.7
  8. 8AbasoloGuanajuato
    11.5
  9. 9GuanajuatoGuanajuato
    10.9
  10. 10San Miguel de AllendeGuanajuato
    10.3
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+

All cities in the world, October 2024 · Mexico now