28 Most Polluted Cities in the World

Source: https://www.panoramio.com/photo/89546195 / Wikimedia Commons

23. Xingtai, North China
> Population: 742,000
> Average annual PM2.5 pollution per cubic meter: 87.0 micrograms
> Average annual PM10 pollution per cubic meter: 185.9 micrograms

Source: lnzyx / Getty Images

22. Shijiazhuang, North China
> Population: 3.3 million
> Average annual PM2.5 pollution per cubic meter: 89.0 micrograms
> Average annual PM10 pollution per cubic meter: 147.0 micrograms

Source: EarnestTse / Getty Images

21. Ji’nan, East China
> Population: 4.0 million
> Average annual PM2.5 pollution per cubic meter: 90.0 micrograms
> Average annual PM10 pollution per cubic meter: 192.3 micrograms

Source: Katiekk2 / Getty Images

20. Ulaanbaatar, Mongolia
> Population: 1.4 million
> Average annual PM2.5 pollution per cubic meter: 92.2 micrograms
> Average annual PM10 pollution per cubic meter: 196.9 micrograms

Source: Romanov Alexey / Wikimedia Commons

19. Baoding, North China
> Population: 1.1 million
> Average annual PM2.5 pollution per cubic meter: 93.0 micrograms
> Average annual PM10 pollution per cubic meter: 147.0 micrograms