Lahore in Pakistan has jumped more than 10 places to become the city with the worst air in the world in 2022, according to an annual global survey by a Swiss maker of air purifiers.
The report published on Tuesday by IQAir also said Pakistan stood third among the countries with the most polluted air, while Bangladesh was the fifth and India eighth.
IQAir measures air quality levels based on the concentration of lung-damaging airborne particles known as PM2.5.
Its annual survey is widely cited by researchers and government organisations.
The IQAir index was prepared using data from more than 30,000 air quality monitors in more than 7,300 locations in 131 countries, territories and regions.
