State of the Air en Annual Air Quality Report Shows Louisville's Progress, But Pollution is Still a Problem <p>An annual report says Louisville&rsquo;s air is better than it&rsquo;s been in recent years. But the metro area&rsquo;s air quality still ranks among the worst in the nation in two categories.</p> Wed, 25 Apr 2012 09:01:00 +0000 Erica Peterson 43 at