What is the air quality trend in Quillón?

Over the past 20 days, Quillón had an average AQI of 64 based on station measurements. The worst day was 2026-05-20 with AQI 92.

How is Quillón air quality measured?

Air quality in Quillón 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 Quillón, Chile

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

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

Current AQI
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

469h

PM2.5 Station

469h · 6 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-29	66	9–181	22.5 µg/m³	23h	4
2026-05-28	51	5–110	14.4 µg/m³	24h	6
2026-05-27	69	15–171	23.6 µg/m³	24h	6
2026-05-26	76	25–170	25.8 µg/m³	24h	6
2026-05-25	65	21–145	20.1 µg/m³	24h	7
2026-05-24	69	15–159	21.8 µg/m³	24h	6
2026-05-23	79	38–157	25.7 µg/m³	24h	6
2026-05-22	56	18–112	16.5 µg/m³	24h	5
2026-05-21	58	21–154	17.0 µg/m³	23h	5
2026-05-20	92	15–269	36.7 µg/m³	24h	5
2026-05-19	70	18–166	23.0 µg/m³	24h	5
2026-05-18	69	16–161	22.5 µg/m³	22h	4
2026-05-17	54	12–119	16.8 µg/m³	20h	4
2026-05-16	55	20–153	16.3 µg/m³	22h	7
2026-05-15	59	25–131	16.8 µg/m³	24h	7
2026-05-14	50	18–155	13.9 µg/m³	24h	7
2026-05-13	63	10–152	18.7 µg/m³	24h	7
2026-05-12	72	18–168	23.8 µg/m³	24h	8
2026-05-11	56	20–104	15.7 µg/m³	24h	8
2026-05-10	62	23–120	18.6 µg/m³	23h	7

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