Worst air pollution Juiz de Fora, today and tomorrow
Today (16 July): Air quality in Juiz de Fora is fair. AQI and PM2.5 are fair; PM10, NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 2:00 PM (PM2.5: 20.2/100).
Tomorrow (17 July 2026): Air quality in Juiz de Fora is good. AQI improves to good; PM2.5 decreases to good; all other pollutants stay as today. Pollution peaks around 12:00 AM (PM2.5: 19.7/100). Airmine updates local air quality forecasts four times daily.
For long term forecasts and maps, see the Airmine app
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
Use our Strava plugin to check your own exposure.
Juiz de Fora's air quality reflects its position in the Paraibuna river valley in the Zona da Mata Mineira region of Minas Gerais, with vehicle emissions from the BR-040 corridor and light industrial activity in the valley floor combining with the topographic enclosure of the surrounding Serra da Mantiqueira foothills. Dry season burning from surrounding Minas Gerais agricultural activity adds seasonal PM2.5 variation.
Today - 16 July | Pollution peaks at 14:00
AQI:
Fair
20.2/100
PM2.5 (fine particles):
Fair
20.2/100
PM10 (coarse particles):
Good
9.2/100
NO2 (nitrogen dioxide):
Good
0.1/100
O3 (ozone):
Good
16.3/100
SO2 (sulfur dioxide):
Good
1.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.4/100
PM1 (ultrafine particles):
Good
3.8/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 00:00
AQI:
Good
19.7/100
PM2.5 (fine particles):
Good
19.7/100
PM10 (coarse particles):
Good
8.9/100
NO2 (nitrogen dioxide):
Good
0.1/100
O3 (ozone):
Good
17.0/100
SO2 (sulfur dioxide):
Good
2.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.4/100
PM1 (ultrafine particles):
Good
4.7/100
Pollen forecast in Juiz de Fora
View pollen forecastFrequently Asked Questions
Is air quality bad in Juiz de Fora right now?
On 16 July 2026, overall air quality in Juiz de Fora is fair. AQI is the main air quality indicator at 20.2/100. Pollution peaks around 2:00 PM (PM2.5: 20.2/100).
Will air quality be worse tomorrow in Juiz de Fora?
On 17 July 2026, air quality conditions in Juiz de Fora will be better than today, with AQI forecast at good at 19.7/100. Pollution peaks around 12:00 AM (PM2.5: 19.7/100).
When is air pollution at its worst in Juiz de Fora?
Air quality dips in Juiz de Fora mostly track eucalyptus and native Atlantic Forest species pollen peaks and periods of vehicle emissions from the BR-040 corridor and light industrial activity in the valley floor; a shift to wetter or windier weather typically brings noticeable relief.
Are air quality levels in Juiz de Fora 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.
Want to see air quality forecasts for other cities in Brazil?
Check air quality in other popular cities:
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