SmogRank / Countries / Mexico / 2024

Most polluted cities in Mexico, 2024

2 cities in Mexico ranked by their average PM2.5 over the 366 days; 2 above the WHO annual guideline (5.0 µg/m³). Worst: Celaya at 24.1 µg/m³, #42 of 1,686 cities in the world. Cleanest: Tijuana at 14.2. A city needs measurements on 70% of the days to be ranked.

  1. 1CelayaGuanajuato
    24.14.8×
  2. 2TijuanaBaja California
    14.22.8×
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, 2024 · Mexico now