IQAir World Air Quality Report 2022 Finds Only 5% of Countries Meet WHO PM2.5 Air Pollution Guideline

The 5th Annual World Air Quality Report reveals alarming details of the world’s most polluted countries, territories, and regions in 2022. For this year’s report, data from more than 30,000 air quality monitoring stations across 7,323 locations in 131 countries, territories, and regions was analyzed by IQAir’s air quality scientists. Read more