Air pollution statistics for Licking Co, Ohio
3. Select a year
| Year | Percentage days with good air | Percentage days with moderate air | Percentage days with unhealthy air for sensitive groups | Percentage days with unhealthy air |
| 1997 | 82.08% | 15.42% | 2.50% | 0.00% |
| 1998 | 65.58% | 27.44% | 6.98% | 0.00% |
| 1999 | 73.43% | 21.26% | 5.31% | 0.00% |
| 2000 | 84.89% | 13.33% | 1.33% | 0.44% |
| 2001 | 80.67% | 17.23% | 2.10% | 0.00% |
| 2002 | 75.21% | 19.75% | 4.62% | 0.42% |
| 2003 | 89.50% | 8.82% | 1.68% | 0.00% |
| 2004 | 89.54% | 10.46% | 0.00% | 0.00% |
| 2005 | 82.28% | 16.88% | 0.84% | 0.00% |
| 2006 | 90.43% | 9.57% | 0.00% | 0.00% |
| 2007 | 76.09% | 23.91% | 0.00% | 0.00% |