Worst air pollution Foz do Iguaçu, today and tomorrow
Today (16 July): Air quality in Foz do Iguaçu is good. AQI, PM2.5, PM10, NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 7:00 AM (O3: 15.8/100).
Tomorrow (17 July 2026): Air quality in Foz do Iguaçu is good. All pollutants stay as today. Pollution peaks around 11:00 PM (O3: 15.6/100). Airmine updates local air quality forecasts four times daily.
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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Foz do Iguaçu's air quality benefits from its position in the far western Paraná at the Brazilian-Argentinian-Paraguayan triple border, with the Itaipú reservoir providing substantial humidity and ventilation from the vast hydroelectric complex. Vehicle emissions from the tourism corridor serving Iguaçu Falls are the primary local source, while the tropical forest setting and consistent moisture from the reservoir generally keep Foz do Iguaçu among the cleaner environments for a major Brazilian border city.
Today - 16 July | Pollution peaks at 07:00
AQI:
Good
15.8/100
PM2.5 (fine particles):
Good
11.8/100
PM10 (coarse particles):
Good
5.4/100
NO2 (nitrogen dioxide):
Good
0.2/100
O3 (ozone):
Good
15.8/100
SO2 (sulfur dioxide):
Good
1.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.4/100
PM1 (ultrafine particles):
Good
1.9/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 23:00
AQI:
Good
15.6/100
PM2.5 (fine particles):
Good
9.4/100
PM10 (coarse particles):
Good
4.3/100
NO2 (nitrogen dioxide):
Good
0.2/100
O3 (ozone):
Good
15.6/100
SO2 (sulfur dioxide):
Good
1.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.4/100
PM1 (ultrafine particles):
Good
1.6/100
Pollen forecast in Foz do Iguaçu
View pollen forecastFrequently Asked Questions
Is air quality bad in Foz do Iguaçu right now?
On 16 July 2026, overall air quality in Foz do Iguaçu is good. AQI is the main air quality indicator at 15.8/100. Pollution peaks around 7:00 AM (O3: 15.8/100).
Will air quality be worse tomorrow in Foz do Iguaçu?
On 17 July 2026, air quality conditions in Foz do Iguaçu will be similar to today, with AQI forecast at good at 15.6/100. Pollution peaks around 11:00 PM (O3: 15.6/100).
When is air pollution at its worst in Foz do Iguaçu?
The most noticeable dips in Foz do Iguaçu's air quality come when native Atlantic Forest remnants and the Itaipu reservoir shoreline vegetation pollen peaks, or because of vehicle emissions from the tourism corridor serving Iguaçu Falls; for the rest of the year, natural airflow keeps background levels low.
Are air quality levels in Foz do Iguaçu based on measurements or forecasts?
It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.
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Data provided by Airmine — Last update: 16 July 2026 at 10:33 CEST (Data is updated four times daily.)
This forecast is produced independently using Airmine's own atmospheric data and models.
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
For long term forecasts and maps, see the Airmine app