What is the air quality trend in Colbún?

Over the past 20 days, Colbún had an average AQI of 62 based on station measurements. The worst day was 2026-05-20 with AQI 80.

How is Colbún air quality measured?

Air quality in Colbún 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 Colbún, Chile

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

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

168

Current AQI
Unhealthy Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

446h

PM2.5 Station

446h · 4 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-29	72	14–161	23.9 µg/m³	19h	2
2026-05-28	47	5–95	13.2 µg/m³	24h	3
2026-05-27	63	15–174	20.7 µg/m³	22h	3
2026-05-26	73	15–217	27.8 µg/m³	24h	3
2026-05-25	54	17–130	15.6 µg/m³	22h	3
2026-05-24	58	5–152	17.9 µg/m³	23h	3
2026-05-23	70	18–126	21.8 µg/m³	23h	3
2026-05-22	74	11–179	25.4 µg/m³	24h	2
2026-05-21	64	19–169	21.1 µg/m³	20h	3
2026-05-20	80	15–176	28.9 µg/m³	22h	3
2026-05-19	69	4–167	24.3 µg/m³	21h	2
2026-05-18	46	2–117	12.9 µg/m³	21h	2
2026-05-17	75	11–413	39.6 µg/m³	20h	2
2026-05-16	49	7–113	14.4 µg/m³	22h	3
2026-05-15	49	6–159	15.4 µg/m³	24h	3
2026-05-14	62	13–159	19.5 µg/m³	22h	4
2026-05-13	63	8–132	19.3 µg/m³	24h	4
2026-05-12	65	15–135	19.9 µg/m³	24h	4
2026-05-11	59	12–140	17.6 µg/m³	23h	4
2026-05-10	51	24–93	14.0 µg/m³	22h	4

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