Just how dirty is the air you breathe? The American Lung Association has released its latest list of the most polluted U.S. cities.
Just how dirty is the air you breathe? The American Lung Association's annual report of the most polluted cities in the U.S. rates communities on levels of ozone, sulfur dioxide, air-borne particulates and tainted tap water. Here are the 20 cities most polluted by year-round particle pollution:
An assassin's misfires spare President Andrew Jackson, "The Lone Ranger" debuts on radio, Gandhi is assassinated, The Beatles hit the roof for one last gig, and the first computer virus is written, all on this day.
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