Suggest you read about the Israeli strike on the Natanz nuclear site and pay attention to what the IAEA says about it with regards to radiation inside and not outside.
IAEA issued an update, saying that based on continued analysis of high- resolution satellite imagery collected after the attacks on the nuclear site at Natanz, the Agency has identified additional elements that indicate direct impacts also on the underground enrichment halls at Natanz.
There has been no radiological impact outside the Natanz site, but circumscribed radiological and chemical contamination inside the enrichment facility, Director General Grossi reported.
https://www.iaea.org/newscenter/pressreleases/update-on-developments-in-iran