Worst air pollution São José de Ribamar, today and tomorrow

On 30 August 2026, overall air quality in São José de Ribamar is fair. AQI is the main air quality indicator at 20.4/100. Pollution peaks around 9:00 AM (O3: 20.4/100).

On 31 August 2026, air quality conditions in São José de Ribamar will be better than today, with AQI forecast at good at 18.9/100. Pollution peaks around 12:00 AM (O3: 18.9/100).

In São José de Ribamar, reduced air quality is most noticeable when restinga coastal scrub and mangrove vegetation pollen peaks, and on days affected by vehicle emissions from the MA-201 and the surrounding São Luís metropolitan expansion; conditions usually ease once the wet season or windier weather returns.

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.