What is the air quality trend in Curicó?

Over the past 15 days, Curicó had an average AQI of 72 based on station measurements. The worst day was 2026-07-08 with AQI 169.

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.

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

325h

PM2.5 Station

325h · 2 stations

Temperature GFS model

55pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-22	39	4–115	12.0 µg/m³	7h	2
2026-07-21	44	4–169	15.5 µg/m³	21h	2
2026-07-20	66	4–256	27.2 µg/m³	24h	2
2026-07-19	38	8–141	10.9 µg/m³	24h	2
2026-07-18	30	4–125	8.1 µg/m³	21h	2
2026-07-17	27	4–94	7.5 µg/m³	21h	2
2026-07-16	31	4–89	8.2 µg/m³	24h	2
2026-07-15	63	29–302	24.1 µg/m³	24h	2
2026-07-14	103	42–321	49.6 µg/m³	24h	2
2026-07-13	119	46–184	51.8 µg/m³	24h	2
2026-07-12	100	54–154	34.8 µg/m³	24h	2
2026-07-11	80	38–179	27.2 µg/m³	24h	2
2026-07-10	77	31–193	29.2 µg/m³	24h	2
2026-07-09	107	59–186	42.0 µg/m³	24h	2
2026-07-08	169	61–289	100.4 µg/m³	15h	2

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