What is the air quality trend in Chiguayante?

Over the past 21 days, Chiguayante had an average AQI of 54 based on station measurements. The worst day was 2026-08-24 with AQI 80.

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
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

478h

PM2.5 Station

478h · 8 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-09-05	54	25–131	15.1 µg/m³	13h	8
2026-09-04	44	19–80	11.3 µg/m³	24h	10
2026-09-03	38	20–57	9.3 µg/m³	24h	12
2026-09-02	44	25–81	11.1 µg/m³	24h	13
2026-09-01	54	16–94	14.5 µg/m³	24h	14
2026-08-31	54	26–119	14.9 µg/m³	24h	14
2026-08-30	55	26–164	15.8 µg/m³	24h	13
2026-08-29	44	25–67	11.0 µg/m³	24h	12
2026-08-28	35	22–51	8.5 µg/m³	24h	11
2026-08-27	46	28–76	11.6 µg/m³	24h	11
2026-08-26	44	23–65	11.0 µg/m³	24h	11
2026-08-25	50	17–112	13.9 µg/m³	24h	9
2026-08-24	80	36–183	28.3 µg/m³	24h	12
2026-08-23	71	23–149	21.8 µg/m³	24h	11
2026-08-22	72	32–116	22.6 µg/m³	24h	10
2026-08-21	61	27–160	18.1 µg/m³	24h	10
2026-08-20	64	23–137	19.2 µg/m³	24h	12
2026-08-19	66	36–158	19.9 µg/m³	24h	12
2026-08-18	61	28–142	17.9 µg/m³	24h	11
2026-08-17	59	26–141	16.9 µg/m³	24h	10
2026-08-16	47	21–94	12.6 µg/m³	9h	11

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