贫铀是指在铀浓缩过程中产生的废物，贫铀中包含的可裂变的铀 235最高到 0.2％，低于天然铀中铀 235的含量 (0.7％ )。贫铀弹首次用于海湾战争，大约有 300吨贫铀留在了伊拉克和科威特。因此，人们把由贫铀弹引发的健康效应称为“海湾战争综合症”。 　　贫铀是一种放射性比较 Depleted uranium is the waste generated during uranium enrichment, which contains up to 0.2% of fissile uranium 235 in depleted uranium, which is lower than the uranium 235 content of 0.7% in natural uranium. For the first time, depleted uranium bombs were used in the Gulf war, leaving about 300 tons of depleted uranium in Iraq and Kuwait. Therefore, the health effects emanated from depleted uranium shells are referred to as “Gulf War Syndrome.” Depleted uranium is a radioactive comparison