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25 Most Polluted Cities in the US in 2017

25. Las Vegas-Henderson, NV-AZ

Out of 288 metropolitan areas, Las Vegas is ranked 10th for the high ozone days. Moreover, it is 37th on the list for 24-hour particle pollution out of 186 metropolitan areas and 43rd for annual particle pollution out of 184 metropolitan areas. The number of people with lung cancer is 1,367.

25 Most Polluted Cities in the US in 2017

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