Most polluted cities in Chile
0 measured cities, last 30 days.
No city has enough measurements for this window yet.
Estimated: cities without a monitor
Chile 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 |
|---|---|
| Santiago | ≈ 48 µg/m³ |
| Puente Alto | ≈ 32 µg/m³ |
| Maipú | ≈ 48 µg/m³ |
| Antofagasta | ≈ 11 µg/m³ |
| Viña del Mar | ≈ 15 µg/m³ |
| Valparaíso | ≈ 15 µg/m³ |
| San Bernardo | ≈ 48 µg/m³ |
| Puerto Montt | ≈ 3 µg/m³ |
| Arica | ≈ 8 µg/m³ |
| Peñalolén | ≈ 32 µg/m³ |
| Temuco | ≈ 5 µg/m³ |
| Concepción | ≈ 6 µg/m³ |
| Rancagua | ≈ 37 µg/m³ |
| Quilicura | ≈ 29 µg/m³ |
| La Pintana | ≈ 48 µg/m³ |
| Iquique | ≈ 4 µg/m³ |
| Talca | ≈ 12 µg/m³ |
| Calama | ≈ 13 µg/m³ |
| Coquimbo | ≈ 15 µg/m³ |
| La Serena | ≈ 15 µg/m³ |
| Talcahuano | ≈ 6 µg/m³ |
| Chillán | ≈ 6 µg/m³ |
| Renca | ≈ 48 µg/m³ |
| Colina | ≈ 29 µg/m³ |
| Alto Hospicio | ≈ 4 µg/m³ |
| Osorno | ≈ 3 µg/m³ |
| Valdivia | ≈ 3 µg/m³ |
| Villa Mercedes | ≈ 5 µg/m³ |
| Quilpué | ≈ 15 µg/m³ |
| Copiapó | ≈ 8 µg/m³ |
| Los Ángeles | ≈ 4 µg/m³ |
| San Pedro de la Paz | ≈ 6 µg/m³ |
| Punta Arenas | ≈ 3 µg/m³ |
| Coronel | ≈ 5 µg/m³ |
| Lo Prado | ≈ 48 µg/m³ |
| Curicó | ≈ 19 µg/m³ |
| Lampa | ≈ 29 µg/m³ |
| Villa Alemana | ≈ 17 µg/m³ |
| San Antonio | ≈ 14 µg/m³ |
| Hualpén | ≈ 6 µg/m³ |
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SmogRank, most polluted cities in Chile, PM2.5, last 30 days to 2 Oct 2026, 00:00 UTC, smogrank.com/cl?w=30d.
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Updated 2026-10-02 00:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.