HI Russ, but you did detect significant mercury from cigarettes didn't you? I am really interested in that one. Because many people smoke and may not be aware of how much even small amounts of mercury may affect them significantly (among all the other toxic metals contained within, as well as the chemicals). I still haven't come right since my smoking binge and that was nearly three months ago now. Goes to show how lethal they are. Though I'm hypersensitive and have problems eliminating toxins, for me, it has tested how bad they really are.