In 2023, the population in Brazil exposed to PM2.5 levels exceeding WHO recommendations was estimated. From 2024 to 2028, there is a forecasted consistent year-on-year reduction in the percentage of the population exposed, starting from 0.97 in 2024 down to 0.41 by 2028. This reflects a significant downward trend with an average annual decrease projected over the five-year period.

Future trends to watch include:

Policies and initiatives for air quality improvement, influencing pollution levels.
Technological advancements and their potential role in reducing emissions.
Socioeconomic factors and urban development impacts on pollution dynamics.