What are the risks of bombing Iran's nuclear sites?

Israel has targeted Iran's nuclear facilities, notably focusing on underground uranium enrichment plants like Natanz and Fordo. The International Atomic Energy Agency (IAEA) has expressed deep concern over these attacks, citing risks of radiological release and environmental consequences. The enrichment process involves increasing uranium-235 levels, crucial for nuclear reactions, with Iran's uranium reportedly reaching 60% enrichment, toward weapon-grade levels. However, a bombing of enriched uranium stockpiles would not cause a major nuclear incident like Fukushima or Chernobyl but could disperse the uranium locally with no nuclear reactions occurring on-site.