Arif Ali | AFP | Getty ImagesAbout 90% of the global population in 2022 experienced unhealthy air quality, and only six countries met the World Health Organization's recommendations of safe air pollutant levels, according to a new report from Swiss air quality technology company IQAir.
The report found that the top five most polluted countries in 2022 were Chad, Iraq, Pakistan, Bahrain and Bangladesh.
Lahore's air quality worsened to 97.4 micrograms of PM 2.5 particles per cubic meter in 2022 from 86.5 in the year prior, making it the most polluted city in the world.
The 2022 report used air quality data from more than 30,000 regulatory air quality monitoring stations and air quality sensors from 7,323 cities across 131 countries, regions and territories.
"Too many people around the world don't know that they are breathing polluted air," Aidan Farrow, senior air quality scientist at Greenpeace International, said in a statement.