January is National Radon Action Month.   Radon is an odorless and colorless gas naturally found in rock and soil that can seep into homes.  Test kits are available through the Lake County Health Department for $10.00. The cost includes return postage, laboratory analysis and interpretation by Health Department staff.  Test kits are also available from area hardware and building supply stores. For more information, contact the Lake County Health Department's Environment Health Services at: (847) 377-8030.