SmogRank / World / Chile / Los Lagos Region / February 2025
Most polluted cities in Los Lagos Region, Chile, February 2025
2 cities in Los Lagos Region, Chile ranked by their average PM2.5 over the 28 days. Worst: Puerto Varas at 16.1 µg/m³, #813 of 2,574 cities in the world. Cleanest: Osorno at 14.4. A city needs measurements on 70% of the days to be ranked.
Ranked by unhealthy days: the share of each city's measured days with a daily mean over 35.4 µg/m³ (US AQI 101+), Unhealthy for Sensitive Groups or worse on the US EPA's scale. Ties go to the higher average.
- 1Puerto Varas 0%
- 2Osorno 0%
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
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SmogRank, most polluted cities in Los Lagos Region, Chile, PM2.5, February 2025, smogrank.com/cl/region/los-lagos-region/history/2025-02 (accessed 6 Oct 2026).
You're welcome to reuse a single chart, image or figure with this citation and a link. Terms. Raw monitor readings in bulk are published by OpenAQ, under each provider's licence.