Strikes on Natanz, Fordow, Isfahan and elsewhere pose little regional radiation risk but could release plumes of toxic chemicals, experts say.

Iran’s Foreign Minister Abbas Araghchi has raised alarming concerns over “reckless” U.S. and Israeli strikes on Iranian nuclear sites between June 13–25. Speaking at the BRICS Summit in Rio, Araghchi warned of irreparable ecological damage and long-term health risks to millions.

Nuclear experts say the president’s rejection of the restrictive deal forced him to neutralize an Iranian threat of his own making.