American Lung Association "State of the Air 2013" Report Finds Air Quality Improves Nationwide Despite More Spikes in Unhealthy Air Days

WASHINGTON, April 24, 2013 /PRNewswire-USNewswire/ – The American Lung Association’s “State of the Air 2013” report released today finds significant progress in the reduction of year-round particle pollution (soot) across the nation, but many cities that ranked among the most…

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