The city of Begusarai in northeastern India had the highest air pollution in the world in 2023, with an average PM2.5 concentration of nearly 119 micrograms per cubic meter of air (μg/m³). Most of the cities with the highest PM2.5 concentration are located in India, including New Delhi, which was the most polluted capital city in the world in 2023.
Average PM2.5 concentration in the most polluted cities worldwide in 2023
(in micrograms per cubic meter of air)
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IQAir. (March 19, 2024). Average PM2.5 concentration in the most polluted cities worldwide in 2023 (in micrograms per cubic meter of air) [Graph]. In Statista. Retrieved December 23, 2024, from https://www.statista.com/statistics/1222702/most-polluted-cities-in-the-world/
IQAir. "Average PM2.5 concentration in the most polluted cities worldwide in 2023 (in micrograms per cubic meter of air)." Chart. March 19, 2024. Statista. Accessed December 23, 2024. https://www.statista.com/statistics/1222702/most-polluted-cities-in-the-world/
IQAir. (2024). Average PM2.5 concentration in the most polluted cities worldwide in 2023 (in micrograms per cubic meter of air). Statista. Statista Inc.. Accessed: December 23, 2024. https://www.statista.com/statistics/1222702/most-polluted-cities-in-the-world/
IQAir. "Average Pm2.5 Concentration in The Most Polluted Cities Worldwide in 2023 (in Micrograms per Cubic Meter of Air)." Statista, Statista Inc., 19 Mar 2024, https://www.statista.com/statistics/1222702/most-polluted-cities-in-the-world/
IQAir, Average PM2.5 concentration in the most polluted cities worldwide in 2023 (in micrograms per cubic meter of air) Statista, https://www.statista.com/statistics/1222702/most-polluted-cities-in-the-world/ (last visited December 23, 2024)
Average PM2.5 concentration in the most polluted cities worldwide in 2023 (in micrograms per cubic meter of air) [Graph], IQAir, March 19, 2024. [Online]. Available: https://www.statista.com/statistics/1222702/most-polluted-cities-in-the-world/