Worst air pollution Januária, today and tomorrow

On 9 August 2026, overall air quality in Januária is fair. O3 is the main pollutant at 21.2/100. Pollution peaks around 5:00 PM (PM2.5: 40.3/100).

On 10 August 2026, air quality conditions in Januária will be similar to today, with PM10 forecast at fair at 24.0/100. Pollution peaks around 6:00 AM (PM2.5: 42.9/100).

You're most likely to notice worse air in Januária when native caatinga scrub and riparian gallery forest along the São Francisco pollen peaks, or due to vehicle emissions from the BR-135 and surrounding cattle ranching, irrigated farming, and agribusiness operations; 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.