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科学家证实,在我国的工业区内,儿童铅中毒的流行率多在85%以上,即使在没有明显工业污染的巿区,流行率也达51.6%。以往认为郊区环境污染状况不如市区的传统观念也已受到挑战。为了进一步弄清北京地区儿童铅中毒的现状,1996年北京医科大学附属第三医院选择北京市中心某小学、京郊小镇某小学和远郊延庆县某小学四五年级学生进行了血铅含量的流行病学调查。被调查的学生年龄均为11～12岁,其中男性115名,女性123名。结果显示铅含量市中心组超过0.48μmol/L者为
Scientists have confirmed that the prevalence of lead poisoning among children in our industrial zone is more than 85%. Even in urban areas where there is no obvious industrial pollution, the prevalence rate reaches 51.6%. In the past, traditional concepts of suburban environmental pollution than urban areas have also been challenged. In order to further understand the status quo of lead poisoning in children in Beijing, in 1996, the Third Affiliated Hospital of Beijing Medical University selected a primary school in Beijing downtown, a primary school in a suburb of Beijing suburbs and an elementary school in Yanqing County, fourth and fifth graders conducted blood lead levels Epidemiological Investigation. The surveyed students were all 11 to 12 years old, including 115 males and 123 females. The results showed that the lead content of the city center group of more than 0.48μmol / L were