What is the air quality trend in Foz do Iguaçu?

Over the past 3 days, Foz do Iguaçu had an average AQI of 47 based on station measurements. The worst day was 2026-10-21 with AQI 66.

How is Foz do Iguaçu air quality measured?

Air quality in Foz do Iguaçu 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 Foz do Iguaçu, Brazil

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

Historical PM2.5 and AQI trend from monitoring stations near Foz do Iguaçu, Brazil.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

45h

PM2.5 Station

45h · 1 station

Temperature GFS model

8pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-10-22	34	30–37	8.0 µg/m³	9.3	2h	1
2026-10-21	66	15–151	21.1 µg/m³	24.3	24h	1
2026-10-20	42	2–176	15.8 µg/m³	17.6	19h	1

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