For the past 13 years the American Lung Associationreleases 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:
infographics
Caffeine Content
If you are looking to switch your morning coffee to tea, or think you are getting less caffeine in a cola than in tea, you