The maximum hazard from a crippled nuclear power plant depends on how much radioactive fuel is on site, both in the reactors and in the storage pools.

核电站损毁的最大危害来自于放射性核燃料，所谓核燃料，包括反应堆中的核燃料和使用过的乏燃料。

youdao

Carry a personal nuclear hazard warning device in medical and laboratory sites using radioactive tracers.

在使用放射性设备的医疗及实验室场所随身携带一个便携式辐射监测仪。

youdao

Article 3 the radioactive articles shall be classified into Categories I, II and III according to their characteristics and their extent of potential hazard to human health and environment.

第三条根据放射性物品的特性及其对人体健康和环境的潜在危害程度，将放射性物品分为一类、二类和三类。

youdao

In view of the radioactive nature of thorium, a hazard is posed from waste produced in the processing of rare earth oxides, which contains it.

FORBES: Rare Earth Elements And Thorium Power

The biggest hazard of atmospheric tests was that radioactive fallout would get into the human food chain.

CNN: ASIANOW - Asiaweek