Is your city bogged by smog?

Pittsburgh edges out Los Angeles as the most polluted U.S. city according to the American Lung Association’s annual report on air pollution.

Los Angeles smog is shown bwlow:



Top 10 most polluted US cities (By short-term particle pollution):

1) Pittsburgh, Pennsylvania
2) Los Angeles, California
3) Fresno/Madera, California
4) Bakersfield, California
5) Birmingham, Alabama
6) Logan, Utah
7) Salt Lake City, Utah
8) Sacramento, California
9) Detroit, Michigan
10) Baltimore, Maryland / Washington, D.C.

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