The State of the Air 2012 report looks at levels of ozone and particle pollution found in monitoring sites across the United States in 2008, 2009, and 2010. The report uses the most current quality-assured nationwide data available for these analyses. The topics below will link you to more information.

FACT: This year’s State of the Air report tells us that nearly four in 10 people (38.5%) in the United States live in counties that received an F for air quality because of unhealthy levels of ozone air pollution.

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