2008-2010

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: Eighteen of the 25 cities most polluted by ozone, including Los Angeles, had their lowest smog levels since the first State of the Air report was published in 2000.

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