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Chile Sees 66% Drop in Winter Air Pollution

10/3/2025

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Summary

Story summary

Santiago, Chile, recorded improved winter air quality with fewer pollution episodes than in prior years.
High-pollution exposure dropped 66% over a decade, driven by long-term policies such as public transport modernization and vehicle restrictions.
This year, 23 critical episodes occurred, down from 915 in 2015; experts warn of a rebound as households lean toward wood-burning stoves.

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Story summary

Santiago, Chile, recorded improved winter air quality with fewer pollution episodes than in prior years.
High-pollution exposure dropped 66% over a decade, driven by long-term policies such as public transport modernization and vehicle restrictions.
This year, 23 critical episodes occurred, down from 915 in 2015; experts warn of a rebound as households lean toward wood-burning stoves.