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In pics: India’s 10 most polluted cities according to WHO

Updated : September 29, 2021 18:39:45 IST

The WHO recently changed its exposure concentration guideline for PM2.5 pollutants to 5 µg/m³ in 24 hours. Indian cities frequently exceed the limits and are some of the most polluted cities in the world.
In pics: India’s 10 most polluted cities according to WHO
Published : September 29, 2021 06:24 PM IST

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