>>507074887>falloutThe Nevada Nuclear Test Site is 65 miles from downtown Las Vegas.
Over 900 nuclear bombs have been detonated there.
They used to have "watch partys" and people would hang out to see the mushroom clouds at bars in downtown Las Vegas.
The nuclear material is consumed when it detonates. The amount of radiation leftover is minimal. People never stopped living in Hiroshima or Nagasaki.
The area around chernobyl is radioactive because the uranium went super critical, causing extreme heat and flash boiled the coolant, which blew the containment vessel apart, thus venting radioactive steam that then settled in the surrounding area.
A "dirty bomb" uses conventional explosives to spread radioactive material (generally something like nuclear waste would be used). This requires relatively large amounts compared to the core size of a nuclear bomb.