SmogRank / Countries / Mexico / Coahuila
Most polluted cities in Coahuila, Mexico
0 measured cities, last 24 hours.
No city has enough measurements for this window yet.
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
Coahuila 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 |
|---|---|
| Torreón | ≈ 9 µg/m³ |
| Ciudad Acuña | ≈ 7 µg/m³ |
| Monclova | ≈ 8 µg/m³ |
| Frontera | ≈ 8 µg/m³ |
| Ramos Arizpe | ≈ 10 µg/m³ |
| Sabinas | ≈ 8 µg/m³ |
| Matamoros | ≈ 8 µg/m³ |
| San Pedro | ≈ 8 µg/m³ |
| San Pedro | ≈ 8 µg/m³ |
| Nueva Rosita | ≈ 8 µg/m³ |
| Ciudad Melchor Múzquiz | ≈ 8 µg/m³ |
| Parras de la Fuente | ≈ 8 µg/m³ |
| Francisco I. Madero | ≈ 8 µg/m³ |
| Castaños | ≈ 8 µg/m³ |
| Nava | ≈ 9 µg/m³ |
| Allende | ≈ 9 µg/m³ |
| San Buenaventura | ≈ 8 µg/m³ |
| Palaú | ≈ 8 µg/m³ |
Updated 2026-10-01 22:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.