镉对心脏和其他很多器官都有毒性，根据美国食品药物监督管理局的规定，人体接触镉的阈值很低（每天每公斤或每2.2磅体重0.21-0.36微克）。摄入可能引起胃部不适、恶心和呕吐。

The school uniform – not something we want to wear as students, yet something we miss when we graduate and reminisce about as working adults. This item of clothing promotes order among students and cu ...