从本世纪七十年代初起美国卫生教育和福利部报道,美国每年儿童铅中毒达40万之多,儿童过量铅成为国际的社会问题。我国铅接触者460万,自周氏报道工业母源性小儿铅中毒以来,己引起国内更多学者的关切。本文试图从环境、母体铅的影响,初探其对儿童的毒作用,从而定量评定儿童铅危害的生物值限。 Since the early 1970s, the U.S. Department of Health Education and Welfare has reported that there are as many as 400,000 lead poisonings in the United States each year. Excess lead in children has become an international social problem. China’s 4.6 million lead exposures, since Zhou’s coverage of industrial maternal lead poisoning, has aroused more domestic scholars’ concerns. This paper tries to explore the biological effects of lead in children by quantitatively assessing the toxic effects on children from the influence of environment and maternal lead.