SmogRank / Countries / Mexico / San Luis Potosí
Most polluted cities in San Luis Potosí, Mexico
1 measured city, this year; 1 above the WHO annual guideline. Worst: San Luis Potosí at 25.7 µg/m³, #175 in the world.
- 1San Luis Potosí 25.75.1×
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+
Estimated: cities without a monitor
San Luis Potosí 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.
| City | 7-day estimate |
|---|---|
| Soledad de Graciano Sánchez | ≈ 8 µg/m³ |
| Ciudad Valles | ≈ 11 µg/m³ |
| Matehuala | ≈ 5 µg/m³ |
| Rioverde | ≈ 9 µg/m³ |
| Ciudad Fernández | ≈ 9 µg/m³ |
| Tamazunchale | ≈ 11 µg/m³ |
| Ébano | ≈ 8 µg/m³ |
| Salinas de Hidalgo | ≈ 6 µg/m³ |
| Tamuín | ≈ 10 µg/m³ |
| Cárdenas | ≈ 7 µg/m³ |
Updated 2026-10-01 19:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.