【摘要】 有色金属冶炼厂造成的环境污染区内．青少年头发及尿中的铅（Pb）、砷（As）、镉（Cd）的含量显高于对照区，两者间的差异具有高度显著性（P＜0．01），其中铅是主要的重金属危险因素．同时，环境污染使青少年的非特异也免疫功能降低．更多还原

【Abstract】 In the area polluted by metallurgical pollutants. the mean concentrations of Pb. As. and Cd in hair andurine of adolescents were higher than those of the controls (P<0.01). Among the heavy metals. lead was amain risk factor, meanwhile. the pollutants had decreased non-specific immune function of the adolescents.更多还原