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低浓度铅接触对儿童体格发育的影响李沛董胜璋近年来许多研究指出，低水平的铅暴露影响儿童正常生长发育。为了探讨这一问题，我们对广州市某区２５９名儿童进行了研究。一、对象与方法对广州市某无工业铅污染地区２５９名儿童（年龄９～１２岁，男１４３人、女１１６人）...
Influence of Low Concentration Lead Exposure on Children’s Physical Development Li Pei, Dong Shengzhang Many studies in recent years have pointed out that low levels of lead exposure affect children’s normal growth and development. To explore this issue, we conducted a study of 259 children in a district in Guangzhou. I. Objects and Methods A total of 259 children (9-12 years old, 143 males and 116 females) in a non-industrial lead pollution area of Guangzhou City