For the past 13 years the American Lung Association releases a new State of the Air Report annually sharing their test results of air pollution across the United States.
This year, they have been joined by InfoNewt to release an infographic designs based on the 2012 report.
You can find the list of the Most Polluted Cities in the United States 2012:
Relationship
10 Ways to Improve Your Marriage
1. Improve your sex life A good sex life is important for your overall health and the health of your marriage. Studies show that couples