The main risk inside the storage facility is the chemical toxicity of uranium hexafluoride gas and fluoride compounds generated in contact with water. The radiological risk from enriched uranium at Natanz is likely to be much smaller than the chemical toxicity from the fluorine.

Israel is intensifying its attacks on Iran’s nuclear program, and President Donald Trump has hinted the U.S. might join the effort. The U.N.'

The International Atomic Energy Agency (IAEA) has reported an acute danger from radiation and chemical substances at the Natanz nuclear facility in Iran. Radiation levels outside the building complex are normal,