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在世界历史上,古罗马帝国曾称雄于世,但最终却灭亡了。史学家自然从政治、经济、社会的因素研究其灭亡的原因,得出其结论;但美国的一些毒物药学家却认为有一种金属摧毁了强大的罗马帝国,这就是铅。其实人类使用铅有久远的历史,埃及早在公元前3000年已使用铅制造工艺品;美索不达米亚在同时期已用铅制造容器和水管;中国在商代也使用了含铅器。但当时人类并未认识铅是毒性金属,正像古罗马帝国的贵族们都使
In the history of the world, the ancient Roman Empire once dominated the world, but eventually it perished. Historians naturally study the causes of their demise from political, economic and social factors and come to their conclusion. However, some poison toxicologists in the United States think that a metal that has destroyed the mighty Roman Empire is the lead. In fact, mankind has a long history of using lead. Egypt used lead to manufacture handicrafts as early as 3000 BC; Mesopotamia had used lead to make containers and pipes during the same period; and China also used lead-containing devices in Shang Dynasty. At that time, however, humans did not recognize that lead was a toxic metal, just as the nobility of the ancient Roman Empire had made