Top 9 Most Polluted Cities in the World
| May 22, 2015
Asianet-Pakistan / Shutterstock
Karachi, Pakistan
Karachi has almost always been on the list of the world’s most polluted cities. Chronic environmental issues are thought to be the top cause. The Karachi government was embroiled in scandal when it was uncovered that it built an entire neighborhood on soil that was the previous site of a major industrial waste contamination.
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