a class 1 carcinogen only means the substance is known to cause cancer. this is not the same thing as saying "there is no level of consumption that is safe". f

a class 1 carcinogen only means the substance is known to cause cancer. this is not the same thing as saying "there is no level of consumption that is safe". from your own reference, "for any particular person, the risk of developing cancer depends on many factors, including how they are exposed to a carcinogen, the length and intensity of the exposure, and the person's genetic makeup."