What is the air quality trend in Freire?

Over the past 15 days, Freire had an average AQI of 79 based on station measurements. The worst day was 2026-05-27 with AQI 115.

How is Freire air quality measured?

Air quality in Freire 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 Freire, Chile

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

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

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

334h

PM2.5 Station

334h · 1 station

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-06-09	87	87–87	29.0 µg/m³	1h	1
2026-06-08	99	25–319	45.3 µg/m³	24h	3
2026-06-07	74	18–177	25.7 µg/m³	24h	3
2026-06-06	74	25–137	23.4 µg/m³	24h	3
2026-06-05	63	8–270	27.3 µg/m³	24h	3
2026-06-04	65	14–170	21.5 µg/m³	24h	3
2026-06-03	68	24–213	27.2 µg/m³	24h	3
2026-06-02	80	30–171	27.4 µg/m³	24h	3
2026-06-01	91	32–177	32.4 µg/m³	23h	2
2026-05-31	68	27–142	20.8 µg/m³	24h	2
2026-05-30	56	17–104	15.9 µg/m³	24h	3
2026-05-29	86	23–186	32.1 µg/m³	24h	3
2026-05-28	64	18–159	20.7 µg/m³	24h	3
2026-05-27	115	38–355	55.4 µg/m³	24h	3
2026-05-26	103	25–178	41.3 µg/m³	22h	3

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