PM2.5 pollution, population exposed to levels exceeding WHO Interim Target-1 value (% of total)

This indicator reflects the proportion of a nation's populace experiencing air quality that surpasses the World Health Organization’s Interim Target 1, specifically indicating areas where the average annual PM2.5 concentration exceeds 35 micrograms per cubic meter. This metric sheds light on the public health risks associated with poor air quality, as high PM2.5 levels are linked to various respiratory and cardiovascular diseases. Notably, the WHO's Air Quality Guideline of 10 micrograms per cubic meter highlights the drastic health impacts observed even at significantly lower concentrations. By assessing the percentage of those affected, this indicator serves as a crucial baseline for targeting interventions and policy efforts aimed at reducing air pollution and protecting vulnerable communities. Source: