Israeli airstrikes have targeted Iran’s nuclear sites despite the conflict between strategic security concerns and the potential for radioactive contamination, so far without causing major off-site radiation hazards.
At a Glance
- The IAEA and Iranian officials report no elevated radiation outside Fordow or Natanz following Israeli strikes.
- Israel struck Natanz facilities aboveground and damaged Arak heavy-water reactor infrastructure on June 19.
- Fordow, built deep inside a mountain, sustained only peripheral damage and remains operational.
- Underground contamination risks are confined to inside Natanz, with fluorine toxicity potentially more concerning than radiation.
- Experts caution that continued targeting of nuclear sites could escalate risks rapidly across the region.
No Radiation Outside Nuclear Sites
According to IAEA Director Rafael Grossi, radiation levels outside Iran’s Natanz site remain unchanged and normal despite recent Israeli strikes targeting above-ground structures. Iranian officials similarly confirmed that Fordow showed no significant damage or radiation leaks following the attack, as reported by HuffPost. Experts emphasize that uranium’s radiological danger is minimal without ingestion, noting that toxic fluorine gas poses a greater immediate threat.
Fordow’s Underground Advantage
Fordow, located 100 kilometers southwest of Tehran, was originally designed to withstand aerial bombardment within a mountainside locale and was repurposed under the JCPOA for non-enrichment research.
Since Iran resumed enriching uranium to 60% purity using advanced IR-6 centrifuges, the deeply buried facility has become a strategic target. However, its subterranean vaults remain largely protected from conventional strikes, with satellite imagery showing only peripheral surface damage.
Watch a report: Iran Says It Resumes 20% Uranium Enrichment at Fordow.
Natanz and Arak: Internal Risks, External Calm
Natanz’s above-ground enrichment halls and power infrastructure were heavily damaged, but its underground centrifuge chambers remain intact. While no external radiation has been detected, internal contamination from uranium hexafluoride and fluorine gas remains a concern.
Nearby, Israeli strikes also damaged the Arak heavy-water reactor, targeting plutonium components, though Iranian authorities denied any radiation risk, according to AP.
Regional Fallout and Escalation Risks
Despite the resilience of Iran’s underground facilities, experts warn that repeated strikes magnify risks of chemical release or structural compromise. The IAEA continues inspections, and international agencies are urging caution as the conflict escalates. If hostilities persist, balancing efforts to disable Iran’s nuclear capabilities without triggering environmental disaster will become increasingly difficult and geopolitically fraught.
