Seen It a Million Times
Once upon a time, nuclear radiation was a good way for people to gain superpowers
or to create monsters
. But as time wore on people came to realize that radiation was more likely to give you cancer or melt your skin off. As such nearly every mention of radiation in media became a hazard to be avoided.
In Real Life
people are exposed to about 81 mrem of radiation each year, not counting X-ray machines or medical radiation, it takes 50 rem to start developing tumors and a lethal dose is about 400 rem or 2 grays (that's about 5,000x greater than the normal background level).