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94 of world's 100 most polluted cities are in India, China, Pakistan

Air pollution is estimated to cost the global economy upwards of $2.9 trillion per year due to fossil fuel emissions alone

Topics
Air pollution study | air pollution in India | Pakistan

BS Reporters 

Photo: Bloomberg
Photo: Bloomberg

Air pollution continues to present one of the world’s biggest health hazards to people everywhere, contri­buting to about 7 million premature deaths annually. 600,000 of these deaths are children.

Compounding this staggering health crisis, air pollution is estimated to cost the global upwards of $2.9 trillion per year due to fossil fuel emissions alone, while also contrib­uting to a range of severe environmental probl­ems.

Air quality is determined by the levels of air pollut­ants PM2.5, PM10, ozone, nitrogen dioxide, sulfur dioxide, and carbon monoxide. In 2020, India had 46 of the world’s 100 most polluted cities, followed by (42), (6), Bangladesh (4), Indonesia (1), and Thailand (1), according to air quality tracker IQAir.

chart

All these cities had a PM2.5 air-quality rating of over 50. Nine out of the top 10 most polluted cities are in India. Hotan, in China’s Xinjiang, had the worst average air quality in 2020, with 110.2.

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First Published: Tue, November 23 2021. 00:44 IST
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