What is the air quality trend in Puente Alto?

Over the past 3 days, Puente Alto had an average AQI of 112 based on station measurements. The worst day was 2026-05-28 with AQI 118.

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.

103

Current AQI
Unhealthy for sensitive groups Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

48h

PM2.5 Station

48h · 74 stations

Temperature GFS model

8pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-30	100	100–100	35.2 µg/m³	1h	74
2026-05-29	118	80–155	42.6 µg/m³	24h	72
2026-05-28	118	66–155	42.5 µg/m³	23h	72

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