Experts in radiation hazards say there is little risk of widespread contamination such as what took place on April 26, 1986, when an infamous power surge and subsequent fire at Russia's Chernobyl Nuclear Power Plant released massive amounts of deadly radiation into the environment.
https://nypost.com/2025/06/21/us-news/us-strikes-on-iran-nuclear-facilities-wont-spark-chernobyl-experts/