SmogRank / Countries / Mexico / Chiapas
Most polluted cities in Chiapas, Mexico
1 measured city, last 30 days; 1 above the WHO 24-hour guideline. Worst: Tuxtla at 29.1 µg/m³, #86 in the world.
- 1Tuxtla 29.1
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
Chiapas 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 |
|---|---|
| Tapachula | ≈ 14 µg/m³ |
| San Cristóbal de las Casas | ≈ 9 µg/m³ |
| Comitán | ≈ 5 µg/m³ |
| Pijijiapan | ≈ 5 µg/m³ |
| Chiapa de Corzo | ≈ 9 µg/m³ |
| Palenque | ≈ 7 µg/m³ |
| Cintalapa de Figueroa | ≈ 5 µg/m³ |
| Ocosingo | ≈ 5 µg/m³ |
| Ocozocoautla de Espinosa | ≈ 9 µg/m³ |
| Villaflores | ≈ 10 µg/m³ |
| Tonalá | ≈ 7 µg/m³ |
| Huixtla | ≈ 13 µg/m³ |
| Berriozábal | ≈ 9 µg/m³ |
| Reforma | ≈ 12 µg/m³ |
| Arriaga | ≈ 5 µg/m³ |
| Motozintla | ≈ 13 µg/m³ |
| Las Margaritas | ≈ 5 µg/m³ |
| Las Rosas | ≈ 9 µg/m³ |
| Comalapa | ≈ 12 µg/m³ |
| Mapastepec | ≈ 3 µg/m³ |
| Suchiapa | ≈ 9 µg/m³ |
| Yajalón | ≈ 7 µg/m³ |
| Cacahoatán | ≈ 29 µg/m³ |
| Teopisca | ≈ 9 µg/m³ |
| Venustiano Carranza | ≈ 9 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.