What is the air quality trend in Puente Alto?

Over the past 7 days, Puente Alto had an average AQI of 127 based on station measurements. The worst day was 2026-05-23 with AQI 178.

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
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

168h

PM2.5 Station

168h · 73 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-05-29	118	80–155	42.6 µg/m³	0.0	24h	72
2026-05-28	119	66–155	42.8 µg/m³	0.0	24h	72
2026-05-27	110	52–232	42.3 µg/m³	0.0	24h	73
2026-05-26	76	36–118	24.2 µg/m³	0.0	24h	73
2026-05-25	114	54–217	55.3 µg/m³	0.0	24h	72
2026-05-24	178	162–208	108.1 µg/m³	0.1	24h	73
2026-05-23	178	160–216	106.7 µg/m³	0.0	24h	74

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