SmogRank / World / South America / Chile

Most polluted cities in Chile

0 measured cities, last 24 hours.

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	Band
Maipú	≈ 48 µg/m³	Unhealthy for sensitive groups
Valparaíso	≈ 15 µg/m³	Moderate
San Bernardo	≈ 48 µg/m³	Unhealthy for sensitive groups
Peñalolén	≈ 32 µg/m³	Moderate
Quilicura	≈ 29 µg/m³	Moderate
La Pintana	≈ 48 µg/m³	Unhealthy for sensitive groups
Iquique	≈ 4 µg/m³	Good
Renca	≈ 48 µg/m³	Unhealthy for sensitive groups
Colina	≈ 29 µg/m³	Moderate
Villa Mercedes	≈ 5 µg/m³	Good
Punta Arenas	≈ 3 µg/m³	Good
Lo Prado	≈ 48 µg/m³	Unhealthy for sensitive groups
Lampa	≈ 29 µg/m³	Moderate
Villa Alemana	≈ 17 µg/m³	Moderate
San Antonio	≈ 14 µg/m³	Moderate
Peñaflor	≈ 48 µg/m³	Unhealthy for sensitive groups
Ovalle	≈ 12 µg/m³	Moderate
Padre Las Casas	≈ 5 µg/m³	Good
Paine	≈ 37 µg/m³	Unhealthy for sensitive groups
Buin	≈ 48 µg/m³	Unhealthy for sensitive groups
Padre Hurtado	≈ 48 µg/m³	Unhealthy for sensitive groups
Melipilla	≈ 19 µg/m³	Moderate
Los Andes	≈ 10 µg/m³	Moderate
San Felipe	≈ 23 µg/m³	Moderate
La Calera	≈ 23 µg/m³	Moderate
Limache	≈ 17 µg/m³	Moderate
Penco	≈ 5 µg/m³	Good
Vallenar	≈ 9 µg/m³	Good
Angol	≈ 3 µg/m³	Good
San Vicente de Tagua Tagua	≈ 17 µg/m³	Moderate
Machalí	≈ 37 µg/m³	Unhealthy for sensitive groups
Castro	≈ 3 µg/m³	Good
Constitución	≈ 8 µg/m³	Good
Ancud	≈ 5 µg/m³	Good
Molina	≈ 16 µg/m³	Moderate
San Javier	≈ 12 µg/m³	Moderate
San Clemente	≈ 12 µg/m³	Moderate
Labranza	≈ 5 µg/m³	Good
Santa Cruz	≈ 19 µg/m³	Moderate
Lautaro	≈ 4 µg/m³	Good

Use this board

SmogRank, most polluted cities in Chile, PM2.5, last 24 hours to 2 Oct 2026, 01:00 UTC, smogrank.com/cl.

Download top 10 (PNG)

You're welcome to reuse a single chart, image or figure with this citation and a link. Terms.

Updated 2026-10-02 01:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.