Everyone is exposed to radiation every day and sources of radiation often surround us. Some are natural and some are man-made, but we can’t see or feel radiation’s presence. It is used in medical treatments and traces can be found during air travel and in nature.
But there are very few situations where an average person is exposed to uncontrolled sources of radiation beyond typical environmental exposure. Still, it’s wise to be prepared and know what to do in case of dangerous levels.