Worst air pollution Angra dos Reis, today and tomorrow

On 9 August 2026, overall air quality in Angra dos Reis is good. AQI is the main air quality indicator at 20.0/100. Pollution peaks around 12:00 AM (O3: 20.0/100).

On 10 August 2026, air quality conditions in Angra dos Reis will be similar to today, with AQI forecast at good at 19.1/100. Pollution peaks around 11:00 PM (O3: 19.1/100).

People in Angra dos Reis tend to notice reduced air quality when native Atlantic Forest trees and restinga coastal scrub pollen peaks, or because of the surrounding Serra do Mar mountains and sheltered bay geography create dramatic topographic variation; beyond that, the area's natural ventilation keeps air quality consistently favourable through the rest of the year.

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.