SmogRank / World / South America / Chile / Santiago Metropolitan
Most polluted cities in Santiago Metropolitan, Chile
No city in Santiago Metropolitan, Chile has enough readings to rank for the last 24 hours.
A city joins the 24-hour ranking with 18 hours of readings in the last 24; none here has that right now, so there is nothing to map or chart.
Last 7 days: 3 measured cities · Last 30 days: 3 measured cities · This year: 3 measured cities
The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales
Estimated: cities without a monitor
Santiago Metropolitan 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 |
|---|---|
| Maipú | ≈ 48 µg/m³ |
| San Bernardo | ≈ 48 µg/m³ |
| Peñalolén | ≈ 32 µg/m³ |
| Quilicura | ≈ 29 µg/m³ |
| La Pintana | ≈ 48 µg/m³ |
| Renca | ≈ 48 µg/m³ |
| Colina | ≈ 29 µg/m³ |
| Lo Prado | ≈ 48 µg/m³ |
| Lampa | ≈ 29 µg/m³ |
| Peñaflor | ≈ 48 µg/m³ |
| Paine | ≈ 37 µg/m³ |
| Buin | ≈ 48 µg/m³ |
| Padre Hurtado | ≈ 48 µg/m³ |
| Melipilla | ≈ 19 µg/m³ |
| El Monte | ≈ 48 µg/m³ |
| Curacaví | ≈ 17 µg/m³ |
Updated 2026-10-02 08:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index.