What is the air quality trend in Curicó?

Over the past 7 days, Curicó had an average AQI of 59 based on station measurements. The worst day was 2026-05-27 with AQI 74.

How is Curicó air quality measured?

Air quality in Curicó 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 Curicó, Chile

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

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

132

Current AQI
Unhealthy for sensitive groups Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

125h

PM2.5 Station

125h · 2 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-29	66	15–147	21.2 µg/m³	14h	1
2026-05-28	44	8–157	13.9 µg/m³	18h	2
2026-05-27	74	26–185	28.3 µg/m³	18h	2
2026-05-26	61	11–134	19.8 µg/m³	17h	2
2026-05-25	68	8–162	23.0 µg/m³	21h	2
2026-05-24	37	10–80	9.8 µg/m³	20h	1
2026-05-23	65	10–179	26.0 µg/m³	17h	1

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