SmogRank / World / South America / Chile / Los Ríos Region

Most polluted cities in Los Ríos Region, Chile

2 measured cities, last 7 days; 2 above the WHO 24-hour guideline. Worst: Valdivia at 29.5 µg/m³, #90 in the world.

Los Lagos Region: 3 measured citiesLos Ríos Region: 2 measured citiesAraucania: 2 measured cities#2 La Unión: 24.8 µg/m³#1 Valdivia: 29.5 µg/m³
Each dot is a measured city, coloured by its PM2.5; tap a dot to open the city.
  1. 1Valdivia 3
  2. 2La Unión 3
Low1–3
Moderate4–6
High7–9
Very high10

The UK's Daily Air Quality Index (1 to 10), PM2.5 bands. 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

Los Ríos Region 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.

City7-day estimateBand
Panguipulli≈ 3 µg/m³Low
Río Bueno≈ 3 µg/m³Low
Paillaco≈ 3 µg/m³Low

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SmogRank, most polluted cities in Los Ríos Region, Chile, PM2.5, last 7 days to 2 Oct 2026, 07:00 UTC, smogrank.com/cl/region/los-rios-region?w=7d.

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Updated 2026-10-02 07:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the UK DAQI PM2.5 sub-index.