Swiss air quality technology company IQAir reveals only seven countries met safe air pollution levels in 2023. Of these, 124 were found to breach safe levels of PM2.5 (fine particulate matter), according to World Health Organization (WHO) guidelines. These microscopic particles, measuring less than 2.5 microns in diameter, can be inhaled deep into our lungs and even reach our bloodstreams. In Europe, Iceland had the cleanest air, followed by Estonia with 4.7g/m3 and