Iranian authorities are reporting no signs of off-site radiation or contamination in the wake of U.S. attacks on three of the country’s nuclear sites. […] That’s according to a statement put out by the International Atomic Energy Agency on Sunday. Rafael Mariano Grossi, the agency’s Director General, said that “as of this time, we don’t expect that there will be any health consequences for people or the environment outside the targeted sites.”
It won’t spread very far due to its density though. I wouldn’t like to be in the enrichment room itself if the bombing did rupture some active centrafuges but outside should be fine.