This dataset presents mean population exposures to outdoor and ambient PM2.5 particles split by macror- and micro-regions.

This dataset presents mean population exposures to outdoor and ambient PM2.5 particles in metropolitan areas.

Air pollution is considered one of the most pressing environmental and health issues across OECD countries and beyond. According to the World Health Organisation (WHO), exposure to fine particulate matter (PM_2.5) and ground-level ozone (O₃) have potentially the most significant adverse effects on health compared to other pollutants.