What is the air quality trend in Hualqui?

Over the past 21 days, Hualqui had an average AQI of 54 based on station measurements. The worst day was 2026-08-24 with AQI 82.

How is Hualqui air quality measured?

Air quality in Hualqui 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 Hualqui, Chile

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

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

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

477h

PM2.5 Station

477h · 13 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-09-05	59	33–120	16.5 µg/m³	10h	9
2026-09-04	43	19–80	10.7 µg/m³	24h	11
2026-09-03	38	23–60	9.2 µg/m³	24h	13
2026-09-02	42	23–68	10.2 µg/m³	24h	13
2026-09-01	55	20–112	15.4 µg/m³	24h	15
2026-08-31	51	27–152	14.0 µg/m³	24h	14
2026-08-30	54	28–163	15.7 µg/m³	24h	13
2026-08-29	43	25–67	10.8 µg/m³	24h	12
2026-08-28	38	21–57	9.2 µg/m³	24h	11
2026-08-27	45	25–76	11.1 µg/m³	24h	12
2026-08-26	44	13–72	11.3 µg/m³	24h	12
2026-08-25	52	20–138	14.3 µg/m³	24h	10
2026-08-24	82	31–183	29.4 µg/m³	24h	12
2026-08-23	74	40–118	23.0 µg/m³	24h	12
2026-08-22	79	42–153	25.5 µg/m³	24h	10
2026-08-21	60	25–167	18.2 µg/m³	24h	11
2026-08-20	63	27–137	18.6 µg/m³	24h	12
2026-08-19	64	28–158	19.3 µg/m³	24h	12
2026-08-18	62	28–126	18.3 µg/m³	24h	12
2026-08-17	59	30–152	17.0 µg/m³	24h	11
2026-08-16	46	21–68	11.6 µg/m³	11h	11

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