What is the air quality trend in Chiguayante?

Over the past 21 days, Chiguayante had an average AQI of 66 based on station measurements. The worst day was 2026-05-20 with AQI 92.

How is Chiguayante air quality measured?

Air quality in Chiguayante 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 Chiguayante, Chile

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

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

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

473h

PM2.5 Station

473h · 1 station

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-06-09	68	17–157	22.2 µg/m³	10h	6
2026-06-08	56	6–153	17.1 µg/m³	23h	7
2026-06-07	53	2–135	15.3 µg/m³	24h	7
2026-06-06	56	9–127	17.0 µg/m³	24h	5
2026-06-05	53	10–149	15.4 µg/m³	24h	5
2026-06-04	65	21–163	21.1 µg/m³	21h	6
2026-06-03	67	22–222	27.6 µg/m³	24h	6
2026-06-02	52	20–111	15.0 µg/m³	24h	7
2026-06-01	58	20–170	17.7 µg/m³	24h	7
2026-05-31	49	10–158	14.4 µg/m³	24h	5
2026-05-30	58	22–160	17.6 µg/m³	24h	8
2026-05-29	64	31–108	19.5 µg/m³	23h	8
2026-05-28	57	20–147	16.9 µg/m³	24h	8
2026-05-27	74	17–206	26.6 µg/m³	24h	8
2026-05-26	77	12–162	25.4 µg/m³	23h	8
2026-05-25	79	20–159	25.9 µg/m³	24h	8
2026-05-24	78	27–154	25.0 µg/m³	24h	8
2026-05-23	86	36–164	29.7 µg/m³	24h	8
2026-05-22	66	25–170	21.0 µg/m³	24h	7
2026-05-21	78	53–156	25.3 µg/m³	24h	10
2026-05-20	92	25–350	44.5 µg/m³	13h	8

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