State of the air
California cities lead the list for most polluted air in the American Lung Association’s report, State of the Air 2010. The report, examines ozone and particle pollution across the U.S. for the years 2006, 2007, and 2008. A previous report covered the years 2005, 2006, and 2007.
Although results showed improvement over previous air quality levels, much remains to be done. Not unexpected, a finding was that people living in poverty face higher risks of harm from air pollution.
Most polluted cities in U.S. by ozone
San Diego/Carlsbad/San Marcos
San Luis Obispo/Paso Robles
Charlotte area North Carolina
Particle pollution, year round
Pittsburgh, PA area
St Louis area
Short term (24 hr.) particle pollution
Salt Lake City
To view the entire report visit,
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