air quality en Columbia and Boone county score high on air quality, St. Louis and 8 counties fail <p>Eight Missouri counties received an “F” grade in The American Lung Association’s recent“State of the Air” report card. The latest report was released Wednesday – grades U.S. counties and cities on air quality.&nbsp;</p><p>Out of the 17 counties with enough data available to issue a score, only Boone County received an “A” grade. And here’s the list of the counties that failed: Clay, Clinton, Jasper, Jefferson, Perry, St. Charles, St. Louis, and St. Louis city. Researchers used air quality data between 2009 and 2011 for the grading.</p> Fri, 26 Apr 2013 13:35:21 +0000 Kristofor Husted 32696 at