i didnt make myself clear

potassium. all potassium on earth is radioactive. any molecule with potassium in it is radioactive. its not much, but its measurable. life cant exist without it so we eat it. no choice.

not sure what the number is, paraboy. but i am not talking about Iodine 131 which is radioactive and a halflife of 8 days. it doesnt exist in nature.

the confusing comment was that we dont need more. i mean we dont need man making more radioactivity and releasing it into our environment. nature has enough. my granite countertop is twice background. its a natural part of the environment so i dont worry. ten times background on a paper towel i wipe my car with after a brief rain, im concerned.