Top 9 Most Polluted Cities in the World
| May 22, 2015
Ehrman Photographic / Shutterstock
Doha, Qatar
Doha is a recent addition to the list of the most polluted cities in the world, and is the only Gulf city on this list. Sand and dust from constant construction projects, and industrial emissions have been thought to be a contributing factor to their recent upswing in pollution problems.
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