Letter: Radon can be lung cancer cause

Rep. Carolyn McCarthy says she will be treated for lung cancer. (2011) Credit: Howard Schnapp
Since radon is the second leading cause of lung cancer after smoking, why isn't Rep. Carolyn McCarthy (D-Mineola) suing Congress and the Environmental Protection Agency for excluding radon from the Safe Drinking Water Act in 1976 ["McCarthy files suit," News, Nov. 10]? The effect of the exclusion was a failure to monitor groundwater for radon levels.
There is radon in groundwater feeding Long Island's public, private and irrigation wells that could have caused her lung cancer.