Long-term UV radiation exposure may increase cataract risk. Radiation exposure from dental X-rays may be associated with an increased risk of brain tumor. Radiation from pediatric CAT scans may also raise cancer risk. Most human exposure to polonium, a radioactive element, comes from fish and seafood. The meat industry has used radiation to reduce risk of food-borne illness. Critics of the use of radiation to help sterilize meat suggest the practice allows industry to become more complacent about food safety.
Topic summary contributed by Randy.