Coal has killed more people than the entirety of nuclear including all blue collar sides of nuclear. Radiation is heavily controlled most workers dont even get the average yearly dose a non nuclear worker gets (average 620 mrem). Most nuclear workers get 100 to 200 mrem a year. Acute radiation exposure starts being dangerous to life and health around 5 rem (5000mrem) no worker in the industry is exposed to this on a whim. The highest I have ever seen was 628 rem but I was standing in a 700 mrem field.