Which city is most polluted? No one knows

On any given day, a news story might list a city in India as "most polluted." In another story, a city in China may have held the distinction. Then again, maybe Iran hosts the most polluted city in the world, as a recent ...

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News

News is the communication of information on current events which is presented by print, broadcast, Internet, or word of mouth to a third party or mass audience.

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