Regarding radioactive tobacco, the sequence of events is as follows: Tobacco plants are fertilized with rock phosphates which contain isotopes of uranium and radon (and their decay products). Of these, the relevant for what we are talking about is polonium-210. This isotope emits alpha particles, which is the important thing to know. Alpha particles are relatively large and can be stopped with a sheet of paper, which makes them almost undetectable. The problem is that if you have a tiny polonium-210 particle stuck somewhere in the bronchial tree, the distance for the alpha particle to travel is short enough to reach any close cell nucleus and, therefore, potentially altering the DNA structure of a cell. These may explain the increased cancer rate in second hand smokers.

If you smoke 1 pack a day of cigarettes it is the equivalent of having 300 X rays in a year.I am honored to receive your love, @reddust. When I look for your posts every night, I am showing also my love. The information is really not too difficult to find. There has to be some basic knowledge and a drive to investigate the subject. Actually here is a reference from the US EPA https://www3.epa.gov/radtown/tobacco.html.