People in Shanghai were exposed to the world's highest levels of nitrogen dioxide pollution for a populous city in 2019

Population-weighted NO2 (µg/m3)

Population-weighted NO2 (µg/m3)

0

10

20

30

40

Shanghai, China

Moscow, Russia

Tehran, Iran

St Petersburg, Russia

Beijing, China

Cairo, Egypt

Ashgabat, Turkmenistan

Minsk, Belarus

Istanbul, Turkey

Ho Chi Minh City, Vietnam