Jerry Cuttler, Ph.D. Nuclear Sciences and Engineering, past president of Canadian Nuclear Society. Is it safe to be exposed to low-level radiation? You can go to two different places for answers: 1) If you go to the radiation protection people, whose job it is to protect everyone from any exposure to radiation (human-made), you'll find there’s a higher risk of cancer. 2) But, if you go out into the real world, who do you know that’s ever been harmed by low-level radiation? There’s just no evidence of that. There are beneficial effects of low radiation from medical practitioners ~1900 to ~1960, to eliminate metastases or slow cancer growth, accelerate healing of wounds, stop infections: gas gangrene, carbuncles and boils, sinus, inner ear, pneumonia, and treat arthritis and other inflammatory conditions.