America's 20 dirtiest cities
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Just how dirty is the air you breathe? The American Lung Association recently released its annual report of the most polluted cities in the U.S. based off levels of ozone, sulfur dioxide, air-borne particulates and tainted tap water.
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20. St. Louis
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19. Cleveland
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18. Baltimore
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17. Los Angeles
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16. Louisville, Ky.
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15. Akron, Ohio
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14. Baton Rouge, La.
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13. Houston
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12. Sacramento, Calif.
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11. New York City
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10. Milwaukee, Wis.
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9. Stockton, Calif.
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8. San Jose, Calif.
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7. New Haven, Conn.
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6. Riverside, Calif.
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5. Modesto, Calif.
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4. Bridgeport, Conn.
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3. Philadelphia
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2. Bakersfield, Calif.
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1. Fresno, Calif.




