Worst air pollution Juiz de Fora, today and tomorrow

On 9 August 2026, overall air quality in Juiz de Fora is fair. AQI is the main air quality indicator at 31.5/100. Pollution peaks around 9:00 PM (PM2.5: 31.5/100).

On 10 August 2026, air quality conditions in Juiz de Fora will be better than today, with AQI forecast at medium at 40.1/100. Pollution peaks around 8:00 PM (PM2.5: 40.1/100).

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.

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.

Airmine’s forecast uses CAMS (Copernicus Atmosphere Monitoring Service) as its background atmospheric model. While CAMS includes wildfire emissions, these are derived from satellite observations and are not available in real time. During rapidly evolving wildfire events, there may therefore be a delay before increased emissions are incorporated into the model. As a result, the forecast may temporarily underestimate PM₂.₅ and other pollutants associated with wildfire smoke.

During rapidly evolving wildfire events, CAMS may lag by approximately 1–2 days before increased wildfire emissions are fully represented, which can lead to temporary underestimation of PM₂.₅ concentrations in Airmine’s forecast.