随著美国与以色列对伊朗核基础设施的空袭在美伊战争的第二个月加剧，主要担忧与其说是爆炸本身，不如说是核设施内部关键安全系统是否受损。文章将问题聚焦于最近对 Natanz、Ardakan、Khondab 重水反应炉，以及伊斯法罕附近地点的打击，同时也关注霍尔木兹海峡周边升高的紧张局势，以及区域石油与水资源安全。文章强调，现代核设施采用多层防护建造，因此一次打击并不会自动意味著一场大规模放射性灾难，但如果停机、冷却、供电或备援系统失效，风险就会急剧上升。
报告描述了反应炉如何在受击后几分钟内自动停机，从而停止链式反应，但衰变热仍然存在，且必须被移除。如果因泵浦受损、电力中断或备用发电机被摧毁而失去冷却，温度就可能上升，氢气可能在水冷式反应炉中累积，燃料棒也可能劣化，从而形成释放放射性物质的条件。文章引用了福岛第一核电厂等过去的灾难；在那里，停机最初成功，而危机是在之后的海啸使关键系统失效后才开始的；也提到车诺比，当时完全的燃料熔毁把长寿命同位素释放到欧洲大片地区。文章还指出，截至目前，IAEA 或其他监督机构尚未确认有任何辐射泄漏或场外污染。
其影响对波斯湾地区尤其严重，因为那里以海水淡化供应数百万人的饮用水，而沿海污染可能影响海洋生态系统、饮用水基础设施和农田。IAEA 的事故与紧急中心会与各国当局核实报告、发布公开更新，并利用天气与监测数据建立扩散模型；如果侦测到辐射扩散，程序可能包括撤离和碘片。文章强调，大多数打击仍不太可能造成大规模放射性灾难，任何污染大概也会局限于局部，但最坏情况是对冷却及其他安全系统造成持续损坏，导致熔毁，并透过风或洋流跨境扩散。截至撰文时，仍没有确认报告显示来自伊朗核设施的辐射羽流已跨越边界，因此目前风险仍受控制，但十分脆弱。
As US and Israeli airstrikes on Iran’s nuclear infrastructure intensify in the second month of the US-Iran war, the main concern is less the blast itself than whether critical safety systems inside a nuclear facility are damaged. The article frames the issue around recent strikes on Natanz, Ardakan, the Khondab heavy water reactor, and sites near Isfahan, alongside rising tension around the Strait of Hormuz and regional oil and water security. It emphasizes that modern nuclear sites are built with layered protections, so a strike does not automatically mean a large radiological disaster, but the risk rises sharply if shutdown, cooling, power, or backup systems fail.
The report describes how a reactor is designed to shut down automatically within minutes after impact, stopping the chain reaction, but decay heat still remains and must be removed. If cooling is lost because of damaged pumps, power loss, or destroyed backup generators, temperatures can rise, hydrogen can accumulate in water-cooled reactors, and fuel rods can degrade, creating conditions for radioactive release. It cites past disasters such as Fukushima Daiichi, where shutdown worked first and the crisis began only after a later tsunami disabled critical systems, and Chernobyl, where a complete fuel meltdown released long-lived isotopes across large parts of Europe. The article also notes that no radiation leaks or off-site contamination have been confirmed so far by the IAEA or other watchdogs.
The implications are especially serious for the Gulf, where desalinated seawater supplies drinking water to millions and where coastal contamination could affect marine ecosystems, drinking-water infrastructure, and farmland. The IAEA’s Incident and Emergency Centre verifies reports with national authorities, issues public updates, and models dispersion using weather and monitoring data; if radiation spread is detected, protocols can include evacuation and iodine tablets. The article stresses that most strikes are still unlikely to cause a large-scale radiological disaster and that any contamination would probably remain localized, but a worst-case scenario would be sustained damage to cooling and other safety systems leading to meltdown and cross-border spread through wind or ocean currents. At the time of writing, there are still no confirmed reports of radiation plumes crossing borders from Iran’s nuclear sites, so the risk remains contained for now, though fragile.