国立大学校长Dmytro Melnychuk说：“锶- 90、钚还有镅- 241都是极易通过大火的高温向大气层上迁移和散播的。”
Dmytro Melnychuk, rector of the national university, said: "Strontium-90, plutonium, and americium-241 are all extremely susceptible to upward atmospheric migration and dispersal via heat from fires."
共发生过18起有案可查的高纯度浓缩铀或钚失窃或流失案例，也许还有其他尚未发现的此类案例。
There have been 18 documented cases of theft or loss of highly enriched uranium or plutonium, and perhaps others not yet discovered.
宁边的核设施包括5兆瓦的石墨慢化反应堆以及后处理厂在内的一些已用乏燃料(烧过的核燃料后处理)再处理设施，还有为了研发核武器而进行钚提取的设备。
The Yongbyon facilities include a 5mw graphite-moderated reactor and a plant used to reprocess spent nuclear fuel from this reactor, including the extraction from it of weapons-grade plutonium.
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