Want to Live Longer? Get Out Of These 30 Most Polluted Cities in the US

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27. St. Louis, MO-IL

PM 2.5 – 10.5

PM 10 – 99

St. Louis’ pollution levels are slightly higher than the limits specified by WHO and therefore poses risks in the  long-term. PM 2.5 and PM 10 are the main pollutants. 

www.schmanke.com

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