PM2.5 pollution, population exposed to levels exceeding WHO Interim Target-2 value (% of total)

This metric represents the percentage of a nation’s populace residing in areas where the average annual concentrations of fine particulate matter (PM2.5) surpass the World Health Organization's Interim Target 2 threshold of 25 micrograms per cubic meter. Such exposure is critical, given that PM2.5 is linked to severe health impacts, including respiratory and cardiovascular diseases. The WHO’s Air Quality Guideline further emphasizes the importance of addressing environmental health by setting a lower benchmark of 10 micrograms per cubic meter, highlighting the urgent need for mitigation strategies. Monitoring this indicator can aid policymakers in identifying at-risk populations and implementing targeted interventions to improve air quality and public health outcomes, ultimately contributing to sustainable urban development and enhanced quality of life. Source: