What is the air quality trend in Freire?

Over the past 15 days, Freire had an average AQI of 52 based on station measurements. The worst day was 2026-07-29 with AQI 113.

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
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

282h

PM2.5 Station

282h · 3 stations

Temperature GFS model

55pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-08-08	77	77–77	24.5 µg/m³	1h	3
2026-08-07	58	8–211	21.8 µg/m³	22h	2
2026-08-06	73	20–256	27.5 µg/m³	24h	3
2026-08-05	49	20–210	16.8 µg/m³	24h	2
2026-08-04	55	32–92	15.3 µg/m³	24h	2
2026-08-03	41	4–161	12.4 µg/m³	24h	2
2026-08-02	30	4–78	7.7 µg/m³	20h	2
2026-08-01	60	4–162	22.0 µg/m³	19h	1
2026-07-31	36	4–142	10.9 µg/m³	21h	1
2026-07-30	34	4–87	9.0 µg/m³	21h	1
2026-07-29	113	15–295	61.6 µg/m³	23h	2
2026-07-28	47	4–212	17.6 µg/m³	23h	1
2026-07-27	39	8–151	11.5 µg/m³	20h	1
2026-07-26	48	21–75	14.3 µg/m³	2h	2
2026-07-25	30	4–70	8.0 µg/m³	14h	1

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