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

Most polluted cities in Los Lagos Region, Chile

3 measured cities, last 7 days; 3 above the WHO 24-hour guideline. Worst: Osorno at 39.6 µg/m³, #43 in the world.

Each dot is a measured city, coloured by its PM2.5; tap a dot to open the city.

← Osorno 39.6 µg/m³ 30 µg/m³15 WHO 24-hour guideline0

Every measured city in Los Lagos Region, Chile, one column each, worst on the left and cleanest on the right; height is PM2.5 in µg/m³. Point at it to read a city; tap to open it.

Low risk1–3

Moderate risk4–6

High risk7–10

Very high risk10+

Canada's AQHI+ for PM2.5 (1 point per 10 µg/m³), which is defined on hourly values. 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 Lagos 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.

City	7-day estimate	Band
Castro	≈ 3 µg/m³	Low risk
Ancud	≈ 5 µg/m³	Low risk
Calbuco	≈ 3 µg/m³	Low risk
Quellón	≈ 3 µg/m³	Low risk
Purranque	≈ 3 µg/m³	Low risk
Llanquihue	≈ 3 µg/m³	Low risk
Maullín	≈ 4 µg/m³	Low risk
Frutillar	≈ 3 µg/m³	Low risk

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SmogRank, most polluted cities in Los Lagos Region, Chile, PM2.5, last 7 days to 2 Oct 2026, 05:00 UTC, smogrank.com/cl/region/los-lagos-region?w=7d.

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Updated 2026-10-02 05:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the Canada AQHI+ PM2.5 sub-index.