elements: Ranked: As 20 cidades mais poluentes do ar na Terra

Ranked: The 20 Most Air-Polluted Cities on Earth

According to the World Health Organization (WHO), almost the entire global population (99%) breathes air that exceeds WHO air quality limits.

In the above map, we use 2022 average PM2.5 concentrations from IQAir’s World Air Quality Report to visualize the most air-polluted major cities in the world.

World’s Air Pollution Hot Spots

As one of the standard air quality indicators used by the WHO, the PM2.5 concentration refers to the quantity of fine particulate matter with a diameter of 2.5 micrometers or less in a given volume of air.

Fine particulate matter that is this small can penetrate the lungs when inhaled and enter the bloodstream, affecting all major organs.

Based on annual average PM2.5 concentrations (μg/m³) in 2022, here are the most polluted cities in the world.

Rank	City	2022 average PM2.5 concentration (μg/m³)
1	Lahore, Pakistan	97.4
2	Hotan, China	94.3
3	Bhiwadi, India	92.7
4	Delhi, India	92.6
5	Peshawar, Pakistan	91.8
6	Darbhanga, India	90.3
7	Asopur, India	90.2
8	N’Djamena, Chad	89.7
9	New Delhi, India	89.1
10	Patna, India	88.9

Ver toda a notícia: https://elements.visualcapitalist.com/ranked-the-20-most-air-polluted-cities-on-earth/