What is the air quality trend in Puente Alto?

Over the past 8 days, Puente Alto had an average AQI of 34 based on station measurements. The worst day was 2026-10-17 with AQI 61.

How is Puente Alto air quality measured?

Air quality in Puente Alto is measured by ground-level monitoring stations that report PM2.5 and PM10 concentrations hourly. CERNS.IO aggregates readings from nearby stations and converts PM2.5 to the US EPA Air Quality Index (AQI) scale.

Air Quality History for Puente Alto, Chile

Name: Puente Alto Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near Puente Alto, Chile.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

166h

PM2.5 Station

166h · 57 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-22	12	10–13	2.8 µg/m³	2h	58
2026-10-21	21	8–54	5.1 µg/m³	24h	66
2026-10-20	19	5–35	4.6 µg/m³	24h	75
2026-10-19	40	9–68	10.2 µg/m³	24h	76
2026-10-18	48	26–66	12.5 µg/m³	24h	76
2026-10-17	61	22–105	18.3 µg/m³	24h	72
2026-10-16	50	14–85	14.2 µg/m³	24h	80
2026-10-15	28	10–62	7.0 µg/m³	20h	75

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