Written by Mapped: Air Pollution Levels Around the World The World Health Organization (WHO) estimates that air pollution leads to 7 million premature deaths every year. Out of the six common air pollutants, particulate matter measuring 2.5 microns or smaller in diameter, or PM2.5, is accepted as the most harmful to human health. This is due to … Continue reading “Mapped: Air Pollution Levels Around the World in 2022”
