The American Lung Association recently issued a Report entitled, "State of the Air 2013," which looks at levels of ground-level ozone and particle pollution across the United States for the period 2009-2011. The Report uses data collected by States, tribes and federal agencies from local air monitoring devices. A variety of information about the Report can be found here. The Report notes that stronger standards for pollutants and sources of pollution have reduced ozone and particulant pollution over the past few decades. From 1970, just before the enactment of regulatory controls ...
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