What is the air quality trend in Curicó?

Over the past 20 days, Curicó had an average AQI of 57 based on station measurements. The worst day was 2026-05-22 with AQI 93.

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 CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

400h

PM2.5 Station

400h · 1 station

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-29	64	15–169	21.6 µg/m³	19h	1
2026-05-28	36	11–99	10.1 µg/m³	21h	2
2026-05-27	58	7–185	20.4 µg/m³	23h	2
2026-05-26	56	11–134	17.7 µg/m³	17h	2
2026-05-25	63	8–167	21.7 µg/m³	20h	2
2026-05-24	41	10–101	11.0 µg/m³	22h	2
2026-05-23	51	10–168	17.5 µg/m³	23h	2
2026-05-22	93	14–500	55.6 µg/m³	19h	2
2026-05-21	44	10–111	12.3 µg/m³	21h	2
2026-05-20	76	20–232	29.7 µg/m³	20h	2
2026-05-19	75	2–262	33.0 µg/m³	19h	2
2026-05-18	55	13–118	16.7 µg/m³	20h	1
2026-05-17	46	11–135	14.2 µg/m³	13h	1
2026-05-16	55	5–198	20.4 µg/m³	20h	2
2026-05-15	52	10–170	17.2 µg/m³	17h	2
2026-05-14	69	4–499	36.5 µg/m³	22h	2
2026-05-13	53	10–113	15.2 µg/m³	24h	2
2026-05-12	56	13–179	19.7 µg/m³	21h	2
2026-05-11	48	9–192	17.2 µg/m³	20h	2
2026-05-10	51	9–157	15.4 µg/m³	19h	2

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