SmogRank / Countries / Mexico / Guanajuato

Most polluted cities in Guanajuato, Mexico

8 measured cities ranked by PM2.5, this year. Worst: Celaya at 17.8 µg/m³, #257 in the world.

#City µg/m³× WHO
1Celaya Guanajuato
17.83.6×
2Irapuato Guanajuato
16.83.4×
3Salamanca Guanajuato
16.63.3×
4León de los Aldama Guanajuato
16.63.3×
5San Luis de la Paz Guanajuato
15.63.1×
6Abasolo Guanajuato
12.72.5×
7San Miguel de Allende Guanajuato
12.62.5×
8Guanajuato Guanajuato
12.22.4×
Good 0–9.0Moderate 9.1+Unhealthy for sensitive groups 35.5+Unhealthy 55.5+Very unhealthy 125.5+Hazardous 225.5+No data

Estimated: cities without a monitor

Guanajuato cities we can't measure, with model estimates for the last 7 days. Listed by population, not ranked: estimates aren't precise enough to rank. Model estimates from the Copernicus Atmosphere Monitoring Service (CAMS), adjusted to measured cities nearby where there are any. Adjusted, a single day lands within ×1.5 of what a monitor would read about two times in three; unadjusted, it can be off by half or double. Treat them as a guide, not a measurement.

City7-day estimateBand
San Francisco del Rincón estimated≈ 11 µg/m³Moderate
Valle de Santiago estimated≈ 11 µg/m³Moderate
Dolores Hidalgo estimated≈ 5 µg/m³Good
Cortazar estimated≈ 9 µg/m³Good
Acámbaro estimated≈ 14 µg/m³Moderate
Uriangato estimated≈ 16 µg/m³Moderate
Purísima de Bustos estimated≈ 11 µg/m³Moderate
Moroleón estimated≈ 16 µg/m³Moderate
Juventino Rosas estimated≈ 8 µg/m³Good
Pénjamo estimated≈ 11 µg/m³Moderate
Salvatierra estimated≈ 9 µg/m³Good
Centro Familiar la Soledad estimated≈ 8 µg/m³Good
Marfil estimated≈ 9 µg/m³Moderate
San Felipe estimated≈ 5 µg/m³Good
Apaseo el Alto estimated≈ 9 µg/m³Good
Villagrán estimated≈ 9 µg/m³Good
Apaseo el Grande estimated≈ 9 µg/m³Good
Yuriria estimated≈ 11 µg/m³Moderate
Comonfort estimated≈ 8 µg/m³Good
San José Iturbide estimated≈ 7 µg/m³Good
Romita estimated≈ 11 µg/m³Moderate
Jaral del Progreso estimated≈ 11 µg/m³Moderate
La Ermita estimated≈ 8 µg/m³Good
Medina estimated≈ 8 µg/m³Good

Updated 2026-10-01 13:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.