Nov 25, 2017 - World
The world's most polluted cities
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From left: Zabol, Gwalior, Allahabad, Riyadh and Raipur — all among the top ten most polluted cities. Photos: AP
Add Axios as your preferred source to
see more of our stories on Google.
From left: Zabol, Gwalior, Allahabad, Riyadh and Raipur — all among the top ten most polluted cities. Photos: AP
